zenfone7: Remove media_codecs_google_c2*

AOSP codecs can be used by default and it is not necessary to include
them device side.

Change-Id: I8227b06f0466b614f12fa9008402b92461ea3dd0
diff --git a/proprietary-files-vendor.txt b/proprietary-files-vendor.txt
index ec51387..da84bcf 100644
--- a/proprietary-files-vendor.txt
+++ b/proprietary-files-vendor.txt
@@ -734,9 +734,6 @@
 vendor/etc/lm/AppClassifierFeature.xml
 vendor/etc/lm/GameOptimizationFeature.xml
 vendor/etc/lowi.conf
-vendor/etc/media_codecs_google_c2.xml
-vendor/etc/media_codecs_google_c2_audio.xml
-vendor/etc/media_codecs_google_c2_video.xml
 vendor/etc/media_profiles.xml
 vendor/etc/media_profiles_kona.xml
 vendor/etc/media_profiles_vendor.xml