Remove ex-Googler mutexlox from OWNERS, etc

Remove ex-Googler mutexlox from OWNERS, histogram owners, and test
contacts.

Added shraash as one of the cros_evaluate_seed owners to avoid that
project going down to 1 owner, since shraash is going to be working on
it.

BUG=None

Change-Id: Ifcac65fa06c1ea932db6fbd1c89cc18f7bd835e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5437013
Reviewed-by: Luc Nguyen <[email protected]>
Commit-Queue: Ian Barkley-Yeung <[email protected]>
Reviewed-by: Kyle Horimoto <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1284824}
NOKEYCHECK=True
GitOrigin-RevId: 37875ad1c89e122f4cec867b4b0eb026242f4d68
1 file changed