GitLab

BUG=598841
TEST=Not easily testable, as this CL removes code that is no longer
active after a first Quirks server check; we expect nearly all devices
should have made a server check as of M-54, if they're ever going to.

Review-Url: https://codereview.chromium.org/2006143011
Cr-Commit-Position: refs/heads/master@{#404587}