[M110][infra] Turn down Android builders.

M111 is now pushing to stable for Android, so these builders are not
necessary.

No-Try: true
Change-Id: I9c105b00d2ac68b5e6d096a688729e3c38f593ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4389273
Reviewed-by: Gary Tong <gatong@chromium.org>
Commit-Queue: Garrett Beaty <gbeaty@google.com>
Cr-Commit-Position: refs/branch-heads/5481@{#1390}
Cr-Branched-From: 130f3e4-refs/heads/main@{#1084008}