Remove unused dependencies from drive_test_util.h

Bug: 911287
Change-Id: I5a996d514ad082fa84551a75d0ab2abf4caba710
Reviewed-on: https://chromium-review.googlesource.com/c/1474845
Reviewed-by: Naoki Fukino <fukino@chromium.org>
Commit-Queue: Robbie McElrath <rmcelrath@chromium.org>
Cr-Commit-Position: refs/heads/master@{#632520}
1 file changed