Revert "audioflinger: Add missing code for FM volume"

This reverts commit 88989c75669e135bee66cc8ba4be14a373af9ac0.
Must revert fix work of Viper4Android

Change-Id: I1b25f033d22b73634623ae602be4aa9a4202bc55
Revert "audioflinger: Fix pops in LPA while effects are applied"

This reverts commit 5edd1d05a93981ef8fc471c5a62d80239e028a89.
Must revert, fix work of Viper4Android

Change-Id: Ibb2cea5db51014e8a52daa24d6c86066a38439db
Revert "audioflinger: Fix delay in enabling effect for LPA"

This reverts commit fcca0f664c13a4c2001eabe6a1402b44a3afc868.
Must revert, fix work of Viper4Android

Change-Id: Idb7770260cb5a2c8323993704044575af731a677