RM6785: Drop MTK audiopreprocessing

OSS counterpart works well, instead of using prebuilt blobs, use oss
where possible. This has no adverse effect on the audio quality.
Switch to OSS libaudiopreprocessing.

Signed-off-by: Vaisakh Murali <mvaisakh@statixos.com>
Change-Id: I2082e4d224608c3acfdc817d09a22755730ba504
diff --git a/configs/audio/audio_effects.xml b/configs/audio/audio_effects.xml
index 4a84c09..eacf666 100644
--- a/configs/audio/audio_effects.xml
+++ b/configs/audio/audio_effects.xml
@@ -21,7 +21,7 @@
         <library name="downmix" path="libdownmix.so"/>
         <library name="loudness_enhancer" path="libldnhncr.so"/>
         <library name="dynamics_processing" path="libdynproc.so"/>
-        <library name="pre_processing" path="libaudiopreprocessing_mtk.so"/>
+        <library name="pre_processing" path="libaudiopreprocessing.so"/>
     </libraries>
 
     <!-- list of effects to load.
diff --git a/proprietary-files.txt b/proprietary-files.txt
index 9abb09c..e66206a 100644
--- a/proprietary-files.txt
+++ b/proprietary-files.txt
@@ -13,7 +13,6 @@
 -vendor/lib/hw/audio.usb.mt6785.so
 -vendor/lib/hw/sound_trigger.primary.mt6785.so
 -vendor/lib/libalsautils.so:vendor/lib/libalsautils-v30.so
--vendor/lib/soundfx/libaudiopreprocessing_mtk.so
 -vendor/lib/libMtkSpeechEnh.so
 -vendor/lib/lib_iir.so
 -vendor/lib/lib_speech_enh.so
@@ -53,7 +52,6 @@
 -vendor/lib/libvowp23_sid_training_alexa.vendor.so
 -vendor/lib/libvowp25testing_alexa.vendor.so
 -vendor/lib/libvowp2training_alexa.vendor.so
--vendor/lib/libwebrtc_audio_preprocessing.so
 -vendor/lib/vendor.mediatek.hardware.audio@6.1.so
 
 # Audio (Configs)