Revert "Sound Control: (OPTIONAL) add power amp registers access control as well"

This reverts commit 972110d695d4af43d8c1c37f0ee4d40dd4d36b5a.

Change-Id: I0a625399782f7c52fd94a47b5f389c98b7abeadb
Revert "Sound Control: (Optional) work around for Nexus 4/5 audio issues"

This reverts commit 926cde6ff7b94bc37591c170b71fd58b651336b0.

Change-Id: I1d24adff6dac2d3f146d8c4a98f756946729afc6
Revert "sound control: WCD9320: update speaker gain control for Z1"

This reverts commit 5d824e70d5906e52aa19901ee018da601f1964d6.

Change-Id: Ie02c85eb572422af4375e9c993ef2a0fff128d68
Revert "sound control 3.x: Initial GPL release for WCD9320 Audio Codec"

This reverts commit 0f54ca66ad34c7ec1a2829f19e50edbbb64902ef.

Change-Id: I33fc4cb5ef854c17579777b61f912f30447b96ca