Revert "Add ViewController to CarrierText."

Revert submission 13536242-b179775696-depenency-get-keyguard

Reason for revert: Candidate reversion for broken tests: b/180440298
Reverted Changes:
I6d0271692:Add ViewController to CarrierText.
I4d9a4a21f:Add Controller for Emergency Button.
I4c76d99f9:Remove Dependency.get from KeyguardSliceTextView.
I730593fcf:Add injection to ClockProvider.
Ifbb93e624:Remove Dependency.get from KeyguardStatusView.
I237215456:Remove final calls to Dependency.get from keyguard...

Change-Id: I3022b0e18b4a40a407de7177be6c94c602f9fcb1