Revert "alsa_sound: Add metadata mode changes for LPA playback"

This reverts commit 5496a3c345320c4340820daf06333828040418a9

Change-Id: Id26b862abb362a481afbd6af58dc6d932aa0901e
Merge "Revert "alsa_sound: Add metadata mode changes for LPA playback"" into cm-10.1