[Fill Dialog Improvements] Deprecate API's

Deperecate API's that are no longer relevant.

Bug: 336223371
Bug: 377868687
Flag: android.service.autofill.fill_dialog_improvements
Test: atest CtsAutoFillServiceTestCases
Change-Id: I371e299c2980ac525de5e6c3f9c4e2cf63bae5b5