[Sync::USS] Don't report error if the password deletion fails

We have suspecion that there are orphan metadata in the Password sync
database due to some bug.
This CL is relaxing the constaints for the detecting failures when
the deletions fails.

After monitor UMA, we may decide to revert this change.

Bug: 973053
Change-Id: Id4f57921418978d9c6805e115d868c31b3d2200b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1655511
Auto-Submit: Mohamed Amir Yosef <mamir@chromium.org>
Commit-Queue: Mikel Astiz <mastiz@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668387}
1 file changed