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

This reverts commit e0ee87e176906bb6ac009a165faa643ea66595f2.
Revert "InCallUI: Disable Back button on Non-intursive InCall Card"

This reverts commit e04b513d64699472e8d0f48ea1728f9f249da652.
Revert "InCallUI: fix non intrusive incallui layout"

This reverts commit 18945892398b451121275a4888bb62e7b5cc9d5d.