[blinkpy] Stop rebaselining on Android bots

We no longer run web tests on Android.

A bunch of special cases can be simplified from the code later, but this
configuration change alone can stop the rebaseline-cl tool and
wpt-importer from trying to rebaseline on Android.

Bug: 567947
Change-Id: I1cd831e1239845f64fa189a092c5192673148c9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1629123
Auto-Submit: Robert Ma <robertma@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663385}
1 file changed