[SyncFS] Clean up V1 drive_file_sync_util.h dependency from V2

BUG=331991

Review URL: https://codereview.chromium.org/125733003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243309 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243309