GitLab

Directory components/signin/core/common was removed but still mentioned
in several DEPS files.

Bug: 
Change-Id: Ie1ab30ed38463e84953a8f98108e7ac7e19041cb
Reviewed-on: https://chromium-review.googlesource.com/807904Reviewed-by: Vaclav Brozek <vabr@chromium.org>
Commit-Queue: Alexander Yashkin <a-v-y@yandex-team.ru>
Cr-Commit-Position: refs/heads/master@{#522047}