Debounce turbine 3pp builds to be once a week.

No need to build turbine every commit. Debounce building to once a week
by always building the last cl in the previous week.

This cl also:
 - Switches versioning to be by commit hash (versions can be anything as
   long as they are unique and commit hashes have the luxury of being
   searched on github, from which you can then find a revid if important).
 - Removes patch from version since we do not do local modifications at
   this time. The patch complicates the version without reason. It can
   be added back if needed.
 - Deletes the cipd.yaml file that is no longer relevant.

Change-Id: I9419fedd11b21325ec59bfe6e7c57d4e9f093b70
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3114187


Commit-Queue: Peter Wen <wnwen@chromium.org>
Reviewed-by: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/main@{#915149}