Remove banana from phone callee's ear (louder mics)

Change-Id: If6c4fde6c044f45df5f19e272eefec68611258bf
Turns out the audio issue is not resolved by using cm's kernel, even though it works on CM

Revert "Remove banana from phone callee's ear (louder mics)"

This reverts commit 18f8c5f10b860be53e01a79d72b50caee1a79c32.