cbuildbot_config: Mark release builds important.
This introduces a variable, "IS_RELEASE_BRANCH", that, when True, causes
all important canaries to be assigned to the release waterfall.
Consequently, manual release waterfall provisioning has been removed.
It also updates the configurations to remove the 'important' flag from
configs that don't belong on the release waterfall.
Reviewed-by: Aviv Keshet <email@example.com>
Commit-Queue: Daniel Jacques <firstname.lastname@example.org>
Tested-by: Daniel Jacques <email@example.com>
2 files changed