removed unnecessary batch file and fix path (#2640)

Author: shahasad

tools/ci_build/github/azure-pipelines/win-ci-pipeline.yml

@@ -112,8 +112,7 @@ jobs:
      set /p WHEEL_FILENAME=<wheel_filename_file
      del wheel_filename_file
      python.exe -m pip install -q --upgrade %WHEEL_FILENAME%
-     set PATH=%PATH%;$(Build.BinariesDirectory)\$(BuildConfig)\$(BuildConfig)
-     @echo %PATH%
+     set PATH=$(Build.BinariesDirectory)\$(BuildConfig)\$(BuildConfig);%PATH%
      python $(Build.SourcesDirectory)\tools\ci_build\build.py --config $(BuildConfig) --build_dir $(Build.BinariesDirectory) --skip_submodule_sync --build_shared_lib --test --cmake_generator "Visual Studio 16 2019"  --use_dnnl --build_wheel --enable_onnx_tests
    
     workingDirectory: '$(Build.BinariesDirectory)\$(BuildConfig)\$(BuildConfig)'