Controls API - Publisher change - Phase 2

Complete the removal of consumer-based load API method. Update the
publisher-based 'publisherForAllAvailable()' to be non-null and
abstract, indicating it is now a required method.

Bug: 149398610
Test: atest ControlsBindingControllerImplTest ServiceWrapperTest
ControlsProviderLifecycleManagerTest
Test: ControlProviderServiceTest

Change-Id: Id06a24d2facf7621e8985ebe0396092752b6f59d