GitLab

Removes the DCHECK in CameraHalDispatcherImpl::RegisterClient. This is
failing DCHECK because ArcCameraBridge would call RegisterClient on its
own thread directly.

Bug: b/173577612
Test: Build simplechrome
Change-Id: I919a717765aef085b58552de5cf3f9dd167388d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2546309
Commit-Queue: Jasmine Chen <lnishan@google.com>
Commit-Queue: Wei Lee <wtlee@chromium.org>
Auto-Submit: Jasmine Chen <lnishan@google.com>
Reviewed-by: Wei Lee <wtlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828657}