ASoC: msm: qdsp6v2: Remove unused PCM OSR clock code

OSR Enable (OE) clock for AUXPCM is taken care in LPASS driver. So
client drivers need not call afe_set_lpass_clock for OE clock when
setting PCM ports. Remove the code that set and reset the OE clock
for PCM port operations.

Change-Id: I347a6a459972a18cdf56236e1764b47fb95b5efe
CRs-fixed: 504455
Signed-off-by: Banajit Goswami <bgoswa@codeaurora.org>