Don't branch Android arm64 Builder (dbg) (reclient).

There's no need to branch an FYI builder that is not a mirror for
anything, and in branch configurations it fails because it refers to a
non-branched console.

Change-Id: Ie34d79831c7ffe1783761a6c5055925a588b3c9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2774942


Auto-Submit: Garrett Beaty <gbeaty@chromium.org>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#864891}