Revert "[3/3] InCallUI: allow disabling non intrusive incall ui"

This reverts commit e0ee87e176906bb6ac009a165faa643ea66595f2.

Change-Id: Ia12b7647d218d686a07f622439019209b5e24f0e
Merge "Revert "[3/3] InCallUI: allow disabling non intrusive incall ui"" into kk4.4