Revert "Prolog rules for branch ownership"

This reverts commit eac7afa843fe2d48469a4a6ea7268e7d4ad01eaa.

Reason for revert: this CL removes every label, oops

Original change's description:
> Prolog rules for branch ownership
> 
> This CL sets up the plumbing for branch ownership in Chrome OS via the
> Branch-Review label. This label is necessary to submit but only shows up
> on branches opted-in to branch review via the 'opt_in_branch_review'
> predicate. Any CL covered by the 'opt_out_branch_review' predicate will
> be excluded from branch review regardless of any opt_in predicates.
> 
> BUG=chromium:987022
> TEST=Tested in general-sandbox repository in crrev.com/1737138
> 
> Change-Id: I107fff7e9d42f47663fbb0435f5bcf538ab25474
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/+/1731533
> Tested-by: Chris McDonald <cjmcdonald@chromium.org>
> Reviewed-by: Aaron Gable <agable@chromium.org>

TBR=agable@chromium.org,saklein@chromium.org,cjmcdonald@chromium.org,wbbradley@chromium.org

Change-Id: I167f49cd670ea0cde91b440c02e249f7eede9cdf
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:987022
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/+/1735065
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Commit-Queue: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Chris McDonald <cjmcdonald@chromium.org>
1 file changed