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This will significantly reduce the wasted bandwidth consumed
when these bots are no longer archiving 13 GB for every build.

Add a new Android Builder that will build 'all' in Release mode,
but not archive the build.

This is a prerequisite for https://chromium-review.googlesource.com/423051

BUG=657315
NOTRY=True

Review-Url: https://codereview.chromium.org/2605873002
Cr-Commit-Position: refs/heads/master@{#440843}