manifest: switch to our frameworks/av

Change-Id: I61735491ca41241d54d9e31752d047adbc8f67d2
diff --git a/remove.xml b/remove.xml
index f607092..baa0a7b 100644
--- a/remove.xml
+++ b/remove.xml
@@ -9,6 +9,7 @@
     <remove-project name="platform/external/drm_hwcomposer" />
     <remove-project name="platform/external/chromium-webview" />
 
+    <remove-project name="platform/frameworks/av" />
     <remove-project name="platform/frameworks/base" />
     <remove-project name="platform/frameworks/native" />
     <remove-project name="platform/frameworks/opt/chips" />