Do not use /Brepro for cl.exe with goma

Current goma backend does not support cl.exe execution with /Brepro.

Change-Id: Ie892880488e3ed22b9253bd8f3bc21306f9b0524
Reviewed-on: https://chromium-review.googlesource.com/1016446
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551623}
1 file changed