`cmake_ninja_vs2019` and `default` are using the same
`cmake_ninja_vs2019` so having two tests are waste so this is removing
`cmake_ninja_vs2019` leaving `default` which does `cmake_ninja_vs2019`.
This change can cut the space consumption by half and with 250GB disc,
- Pre-test: 267,770,322,944 bytes free
- Post-test: 134,499,295,232 bytes free
* support "move and respawn" for kokoro jobs
* delete_nonartifacts.sh no longer needed
* bazel distribtest dont publish any artifacts
* try the altsrc respawn for selected jobs
* use altsrc for all windows CI jobs
* use altsrc for all macos CI jobs
* only move files under src/github
* fix uploading artifacts on windows
* Run 2to3 on tools directory
* Delete github_stats_tracking
* Re-run 2to3
* Remove unused script
* Remove unused script
* Remove unused line count utility
* Yapf. Isort
* Remove accidentally included file
* Migrate tools/distrib directory to python 3
* Remove unnecessary shebang
* Restore line_count directory
* Immediately convert subprocess.check_output output to string
* Take care of Python 2 shebangs
* Invoke scripts using a Python 3 interpreter
* Yapf. Isort
* Try installing Python 3 first
* See if we have any Python 3 versions installed
* Add Python 3.7 to Windows path
* Try adding a symlink
* Try to symlink differently
* Install six for Python 3
* Run run_interop_tests with python 3
* Try installing six in python3.7 explicitly
* Revert "Try installing six in python3.7 explicitly"
This reverts commit 2cf60d72f3.
* And debug some more
* Fix issue with jobset.py
* Add debug for CI failure
* Revert microbenchmark changes
* Download the working msys64 and use it to compile 27
* Remove the cygwin detection override logic
* Only install Python interpreters in jobs running on winserver2016
* Fix the batch script substring check
* Increase the timeout for related jobs
* TIL that there is an allow list for Kokoro env vars
* Download the working msys64 and use it to compile 27
* Remove the cygwin detection override logic
* Only install Python interpreters in jobs running on winserver2016
* Fix the batch script substring check
* Increase the timeout for related jobs
* TIL that there is an allow list for Kokoro env vars