Revert "Protect LOGIN_ACCOUNTS_CHANGED receiver in SyncManager"

This reverts commit cf2bd348e73e880fe5bfc7a025732d4ec606ff1f.

Reverted because for account removal the AccountManagerService
delegates the sending of LOGIN_ACCOUNTS_CHANGED to the authenticator.
See b/17511110.

Change-Id: Ic03016af98070b4add5f7a5ec1fdff32ba63298e
1 file changed