Issue #1053 - Part 2a: Remove android from /layout (partial)

This removes android code from base, build, forms, generic, inspector, style,
printing, tools and xul.

layout/build/nsLayoutStatics.cpp

@@ -315,10 +315,7 @@ nsLayoutStatics::Initialize()
   // creating the hidden DOM window to support some current stylo hacks. We
   // should move initialization back here once those go away.
 
-#ifndef MOZ_WIDGET_ANDROID
-  // On Android, we instantiate it when constructing AndroidBridge.
   MediaPrefs::GetSingleton();
-#endif
 
   return NS_OK;
 }