Remove discard_reason.h from chrome sources lists

The file discard_reason.h was deleted when its content
moved into a mojom file in but
it was not removed from the sources lists. This caused
some local problems with trybot servers so here it goes.

Change-Id: I873bc5e643c87f83197b4f0512d2859371c1e005
Commit-Queue: Daniel Bratell <>
Reviewed-by: Avi Drissman <>
Cr-Commit-Position: refs/heads/master@{#601065}
1 file changed