GitLab

Removing the histogram because we have historically not looked at it
and we now have UKM which will give us more accurate data

BUG=1042133

Change-Id: Ib8d05040b017586bd7ef653d505d9d6e0a8e4dd1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2001853
Commit-Queue: Peter Kotwicz <pkotwicz@chromium.org>
Reviewed-by: Glenn Hartmann <hartmanng@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#732576}