ASoC: wcd9335: Remove redundant LDO bias setting

LDO bias current is explicitly enabled in the driver
which is used for micbias. However, this setting
is redundant for micbias enablement.

Change-Id: Ia2f2859fe456e1646b3d9ca1cc14ff88a0327779
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>