Remove obsolete aliases of WebRTC's Chromium-compile trybots

(renamed in https://chromium-review.googlesource.com/926010)

Change-Id: I3276989c8f44e32144c1989c3ee68142014a7eab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628708
Auto-Submit: Oleh Prypin <oprypin@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663365}
1 file changed