Remove default: None from parameter schema

[drpatelh]

Remove default entries specified as None in the parameter schema.

Latest release is failing in the community/showcase on Tower with the following error:
https://tower.nf/orgs/community/workspaces/showcase/watch/55hIP0xdXS2O0W

ERROR ~ No such file or directory: s3://nf-tower-bucket/scratch/55hIP0xdXS2O0W/None
 -- Check script '.nextflow/assets/nf-core/mag/./workflows/mag.nf' at line: 155 or see 'nf-55hIP0xdXS2O0W.log' file for more details
Saving cache: .nextflow/cache/64a85618-bd4a-4773-a875-f4a47a570a5d => s3://nf-tower-bucket/scratch/55hIP0xdXS2O0W/.nextflow/cache/64a85618-bd4a-4773-a875-f4a47a570a5d

Testing via the branch seems to bypass this. Pipeline is still running 🤞🏽
https://tower.nf/orgs/community/workspaces/showcase/watch/35RGI2TFVk34bb

[github-actions]

nf-core lint overall result: Passed ✅ ⚠️

Posted for pipeline commit a28be58

+| ✅ 158 tests passed       |+
#| ❔   1 tests were ignored |#
!| ❗   1 tests had warnings |!

❗ Test warnings:

• pipeline_todos - TODO string in methods_description_template.yml: #Update the HTML below to your prefered methods description, e.g. add publication citation for this pipeline

❔ Tests ignored:

• files_unchanged - File ignored due to lint config: lib/NfcoreTemplate.groovy

✅ Tests passed:

• files_exist - File found: .gitattributes
• files_exist - File found: .gitignore
• files_exist - File found: .nf-core.yml
• files_exist - File found: .editorconfig
• files_exist - File found: .prettierignore
• files_exist - File found: .prettierrc.yml
• files_exist - File found: CHANGELOG.md
• files_exist - File found: CITATIONS.md
• files_exist - File found: CODE_OF_CONDUCT.md
• files_exist - File found: CODE_OF_CONDUCT.md
• files_exist - File found: LICENSE or LICENSE.md or LICENCE or LICENCE.md
• files_exist - File found: nextflow_schema.json
• files_exist - File found: nextflow.config
• files_exist - File found: README.md
• files_exist - File found: .github/.dockstore.yml
• files_exist - File found: .github/CONTRIBUTING.md
• files_exist - File found: .github/ISSUE_TEMPLATE/bug_report.yml
• files_exist - File found: .github/ISSUE_TEMPLATE/config.yml
• files_exist - File found: .github/ISSUE_TEMPLATE/feature_request.yml
• files_exist - File found: .github/PULL_REQUEST_TEMPLATE.md
• files_exist - File found: .github/workflows/branch.yml
• files_exist - File found: .github/workflows/ci.yml
• files_exist - File found: .github/workflows/linting_comment.yml
• files_exist - File found: .github/workflows/linting.yml
• files_exist - File found: assets/email_template.html
• files_exist - File found: assets/email_template.txt
• files_exist - File found: assets/sendmail_template.txt
• files_exist - File found: assets/nf-core-mag_logo_light.png
• files_exist - File found: conf/modules.config
• files_exist - File found: conf/test.config
• files_exist - File found: conf/test_full.config
• files_exist - File found: docs/images/nf-core-mag_logo_light.png
• files_exist - File found: docs/images/nf-core-mag_logo_dark.png
• files_exist - File found: docs/output.md
• files_exist - File found: docs/README.md
• files_exist - File found: docs/README.md
• files_exist - File found: docs/usage.md
• files_exist - File found: lib/nfcore_external_java_deps.jar
• files_exist - File found: lib/NfcoreSchema.groovy
• files_exist - File found: lib/NfcoreTemplate.groovy
• files_exist - File found: lib/Utils.groovy
• files_exist - File found: lib/WorkflowMain.groovy
• files_exist - File found: main.nf
• files_exist - File found: assets/multiqc_config.yml
• files_exist - File found: conf/base.config
• files_exist - File found: conf/igenomes.config
• files_exist - File found: .github/workflows/awstest.yml
• files_exist - File found: .github/workflows/awsfulltest.yml
• files_exist - File found: lib/WorkflowMag.groovy
• files_exist - File found: modules.json
• files_exist - File found: pyproject.toml
• files_exist - File not found check: Singularity
• files_exist - File not found check: parameters.settings.json
• files_exist - File not found check: .nf-core.yaml
• files_exist - File not found check: bin/markdown_to_html.r
• files_exist - File not found check: conf/aws.config
• files_exist - File not found check: .github/workflows/push_dockerhub.yml
• files_exist - File not found check: .github/ISSUE_TEMPLATE/bug_report.md
• files_exist - File not found check: .github/ISSUE_TEMPLATE/feature_request.md
• files_exist - File not found check: docs/images/nf-core-mag_logo.png
• files_exist - File not found check: .markdownlint.yml
• files_exist - File not found check: .yamllint.yml
• files_exist - File not found check: lib/Checks.groovy
• files_exist - File not found check: lib/Completion.groovy
• files_exist - File not found check: lib/Workflow.groovy
• files_exist - File not found check: .travis.yml
• nextflow_config - Config variable found: manifest.name
• nextflow_config - Config variable found: manifest.nextflowVersion
• nextflow_config - Config variable found: manifest.description
• nextflow_config - Config variable found: manifest.version
• nextflow_config - Config variable found: manifest.homePage
• nextflow_config - Config variable found: timeline.enabled
• nextflow_config - Config variable found: trace.enabled
• nextflow_config - Config variable found: report.enabled
• nextflow_config - Config variable found: dag.enabled
• nextflow_config - Config variable found: process.cpus
• nextflow_config - Config variable found: process.memory
• nextflow_config - Config variable found: process.time
• nextflow_config - Config variable found: params.outdir
• nextflow_config - Config variable found: params.input
• nextflow_config - Config variable found: params.show_hidden_params
• nextflow_config - Config variable found: params.schema_ignore_params
• nextflow_config - Config variable found: manifest.mainScript
• nextflow_config - Config variable found: timeline.file
• nextflow_config - Config variable found: trace.file
• nextflow_config - Config variable found: report.file
• nextflow_config - Config variable found: dag.file
• nextflow_config - Config variable (correctly) not found: params.nf_required_version
• nextflow_config - Config variable (correctly) not found: params.container
• nextflow_config - Config variable (correctly) not found: params.singleEnd
• nextflow_config - Config variable (correctly) not found: params.igenomesIgnore
• nextflow_config - Config variable (correctly) not found: params.name
• nextflow_config - Config variable (correctly) not found: params.enable_conda
• nextflow_config - Config timeline.enabled had correct value: true
• nextflow_config - Config report.enabled had correct value: true
• nextflow_config - Config trace.enabled had correct value: true
• nextflow_config - Config dag.enabled had correct value: true
• nextflow_config - Config manifest.name began with nf-core/
• nextflow_config - Config variable manifest.homePage began with https://github.com/nf-core/
• nextflow_config - Config dag.file ended with .html
• nextflow_config - Config variable manifest.nextflowVersion started with >= or !>=
• nextflow_config - Config manifest.version ends in dev: '2.3.1dev'
• nextflow_config - Config params.custom_config_version is set to master
• nextflow_config - Config params.custom_config_base is set to https://raw.githubusercontent.com/nf-core/configs/master
• nextflow_config - Lines for loading custom profiles found
• files_unchanged - .gitattributes matches the template
• files_unchanged - .prettierrc.yml matches the template
• files_unchanged - CODE_OF_CONDUCT.md matches the template
• files_unchanged - LICENSE matches the template
• files_unchanged - .github/.dockstore.yml matches the template
• files_unchanged - .github/CONTRIBUTING.md matches the template
• files_unchanged - .github/ISSUE_TEMPLATE/bug_report.yml matches the template
• files_unchanged - .github/ISSUE_TEMPLATE/config.yml matches the template
• files_unchanged - .github/ISSUE_TEMPLATE/feature_request.yml matches the template
• files_unchanged - .github/PULL_REQUEST_TEMPLATE.md matches the template
• files_unchanged - .github/workflows/branch.yml matches the template
• files_unchanged - .github/workflows/linting_comment.yml matches the template
• files_unchanged - .github/workflows/linting.yml matches the template
• files_unchanged - assets/email_template.html matches the template
• files_unchanged - assets/email_template.txt matches the template
• files_unchanged - assets/sendmail_template.txt matches the template
• files_unchanged - assets/nf-core-mag_logo_light.png matches the template
• files_unchanged - docs/images/nf-core-mag_logo_light.png matches the template
• files_unchanged - docs/images/nf-core-mag_logo_dark.png matches the template
• files_unchanged - docs/README.md matches the template
• files_unchanged - lib/nfcore_external_java_deps.jar matches the template
• files_unchanged - lib/NfcoreSchema.groovy matches the template
• files_unchanged - .gitignore matches the template
• files_unchanged - .prettierignore matches the template
• files_unchanged - pyproject.toml matches the template
• actions_ci - '.github/workflows/ci.yml' is triggered on expected events
• actions_ci - '.github/workflows/ci.yml' checks minimum NF version
• actions_awstest - '.github/workflows/awstest.yml' is triggered correctly
• actions_awsfulltest - .github/workflows/awsfulltest.yml is triggered correctly
• actions_awsfulltest - .github/workflows/awsfulltest.yml does not use -profile test
• readme - README Nextflow minimum version badge matched config. Badge: 22.10.1, Config: 22.10.1
• readme - README Zenodo placeholder was replaced with DOI.
• pipeline_name_conventions - Name adheres to nf-core convention
• template_strings - Did not find any Jinja template strings (208 files)
• schema_lint - Schema lint passed
• schema_lint - Schema title + description lint passed
• schema_lint - Input mimetype lint passed: 'text/csv'
• schema_params - Schema matched params returned from nextflow config
• system_exit - No System.exit calls found
• actions_schema_validation - Workflow validation passed: clean-up.yml
• actions_schema_validation - Workflow validation passed: linting_comment.yml
• actions_schema_validation - Workflow validation passed: ci.yml
• actions_schema_validation - Workflow validation passed: awstest.yml
• actions_schema_validation - Workflow validation passed: linting.yml
• actions_schema_validation - Workflow validation passed: fix-linting.yml
• actions_schema_validation - Workflow validation passed: awsfulltest.yml
• actions_schema_validation - Workflow validation passed: branch.yml
• merge_markers - No merge markers found in pipeline files
• modules_json - Only installed modules found in modules.json
• multiqc_config - 'assets/multiqc_config.yml' follows the ordering scheme of the minimally required plugins.
• multiqc_config - 'assets/multiqc_config.yml' contains a matching 'report_comment'.
• multiqc_config - 'assets/multiqc_config.yml' contains 'export_plots: true'.
• modules_structure - modules directory structure is correct 'modules/nf-core/TOOL/SUBTOOL'

Run details

• nf-core/tools version 2.8
• Run at 2023-05-19 12:56:27