Squashed revert of all Find5 changes

Summary:
Revert "Add mic for video recording for oppo find5"

This reverts commit 971b1b420ae5d946e439ccbbb94cbe1ad1b76c62.

Revert "Fix low volume on speaker incall"

This reverts commit 787355cf24558793836ecca58d9d7240d6497384.

Revert "Fix echo and bad sound incall on find5"

This reverts commit 2228f69c42f1d6931dc83e9bd89a0a11e35e4bb4.

Test Plan: verify and +1

Reviewers: anders3408, synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D565