Add missing fields in the example and remove unused comments.

Author: tyh2333

mmv1/products/logging/LogScope.yaml

@@ -19,7 +19,6 @@ self_link: '{{parent}}/locations/{{location}}/logScopes/{{name}}'
 import_format: ['{{%parent}}/locations/{{location}}/logScopes/{{name}}']
 update_verb: :PATCH
 update_mask: true
-# min_version: beta
 references: !ruby/object:Api::Resource::ReferenceLinks
   guides:
     'Official Documentation': 'https://cloud.google.com/logging/docs/apis'
@@ -37,7 +36,6 @@ examples:
       project: :PROJECT_NAME
 custom_code: !ruby/object:Provider::Terraform::CustomCode
   encoder: templates/terraform/encoders/logging_log_scope.go.erb
-  # pre_read: templates/terraform/pre_read/logging_log_scope.go.erb
 parameters:
   - !ruby/object:Api::Type::String
     name: parent

mmv1/templates/terraform/examples/logging_log_scope_basic.tf.erb

@@ -1,6 +1,9 @@
 resource "google_logging_log_scope" "<%= ctx[:primary_resource_id] %>" {
+    parent         = "projects/<%= ctx[:test_env_vars]['project'] %>"
+    location       = "global"
     name           = "projects/<%= ctx[:test_env_vars]['project'] %>/locations/global/logScopes/<%= ctx[:vars]['log_scope_name'] %>"
     resource_names = [
+        "projects/<%= ctx[:test_env_vars]['project'] %>",
         "projects/<%= ctx[:test_env_vars]['project'] %>/locations/global/buckets/_Default/views/<%= ctx[:vars]['log_view_name_1'] %>",
         "projects/<%= ctx[:test_env_vars]['project'] %>/locations/global/buckets/_Default/views/<%= ctx[:vars]['log_view_name_2'] %>"
     ]