Remove Rietveld CQ config.

Rietveld CQ has already been disabled and is no longer supoorted.

R=agable@chromium.org
TBR=sergiyb@chromium.org

No-Try: True
Bug: chromium:770592
Change-Id: Ic992d2b85c4108a181d786304030e00a5e6b3b58
Reviewed-on: https://chromium-review.googlesource.com/714304
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#508365}
1 file changed