These testing scripts are no longer used since moving to GitHub. The
Nightly (now refered to as "Daily" tests), the Weekly Tests, Compiler
Tests and the CI (Kokoro, pre-commit) tests are run via the GitHub
Actions infrastructure. Their setup is described via Workflow files
in ".github/workflows". To run tests locally please consult the
"TESTING.md" file.
These scripts may still be useful to reference and are therefore being
moved into a deprecated state.
Change-Id: Ie75c2f4f1179eb73d0f45ba0b259e8d79aa02ace