Don't cancel incall notification unnecessarily

This code path happens ~8 times in the outgoing call process
and causes unnecessary binder transactions

Bug: 18373617
Change-Id: I179159df396fcbbae306c5599f59b24f3addc56f
1 file changed
tree: 72201049500e4f62fbca241b7d7b106931432511
  1. InCallUI/