Stop co-routines whenever the rest to unlock settings toggle is not enabled.

The previously launched co-routines are still running even when the settings toggle is disabled.

Bug: 305271359
Flag: LEGACY REST_TO_UNLOCK DEVELOPMENT
Test: Enabled/disabled the touch_to_unlock settings toggle and verified that the progress bar is not visible.
Test: pending for the viewModel, will add in a follow-up CL
Change-Id: I2db36b66285918291e024961986598326a30bb18