audio: remove useless code. [1/1]

PD#SWPL-61300

Problem:
remove useless code.

Solution:
remove useless code.

Verify:
locally passed.

Change-Id: Ie615235407ae7f2e4e2c4e0e4fa9f73de7211bb1
Signed-off-by: Xiushan Lu <xiushan.lu@amlogic.com>
25 files changed