Don't cancel vibrations in LockIconViewController

This call was generically cancelling ALL vibrations,
when the intention was just to cancel any vibrations from
the lock icon. (And won't need to manually cancel
the vibration from the lock icon since the vibration is short anyway.)

Test: manual
Fixes: 228936379
Change-Id: Id821843cd81f0ddd96b597922f08e2ad31d320e7