Revert "ASoC: wcd9xxx: Avoid micbias glitches during audio playback"

This reverts commit 05f83b68.
This change is effecting button4 and button5 in multibutton headset.
So revert this gerrit for all buttons to work.

Change-Id: Ia9ab14d03daf1f927ded2800c9acbfb7711dbc75
Signed-off-by: Yeleswarapu Nagaradhesh <nagaradh@codeaurora.org>