GitLab

This change cleans up some temporary crash keys used while investigating
crbug.com/1111735.

R=lukasza

Bug: 1111735
Change-Id: I441744d269f8afc508930b51623b992194d1327a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2355293Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Łukasz Anforowicz <lukasza@chromium.org>
Commit-Queue: Alex Moshchuk <alexmos@chromium.org>
Auto-Submit: David Van Cleve <davidvc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798189}