Remove unnecessary dependencies from /components/sync and /browser_sync

Bug: 896303
Change-Id: Icf856bfa95640cbb44e75d35cc0e8514aac69e62
Reviewed-on: https://chromium-review.googlesource.com/c/1286850
Commit-Queue: Marc Treib <[email protected]>
Reviewed-by: Mikel Astiz <[email protected]>
Cr-Commit-Position: refs/heads/master@{#600739}
7 files changed