Remove libwebrtc_audio_processing

libwebrtc_audio_processing is no longer used by audio
preprocessing effects

Bug: 175749641
Test: Builds
Change-Id: Id60fe90d481ae74ea617260fb3cf88c0cc7da79b
diff --git a/target/product/media_vendor.mk b/target/product/media_vendor.mk
index 7d4af64..ef009ad 100644
--- a/target/product/media_vendor.mk
+++ b/target/product/media_vendor.mk
@@ -23,4 +23,3 @@
 # /vendor packages
 PRODUCT_PACKAGES += \
     libaudiopreprocessing \
-    libwebrtc_audio_preprocessing \