quicktime: Disable that decoder module.

The number of crash report related to that modules leave us no solution.
(cherry picked from commit 46552a45)

modules/codec/quicktime.c

@@ -66,7 +66,7 @@ static void Close( vlc_object_t * );
 
 vlc_module_begin();
     set_description( N_("QuickTime library decoder") );
-    set_capability( "decoder", 10 );
+    set_capability( "decoder", 0 );
     set_category( CAT_INPUT );
     set_subcategory( SUBCAT_INPUT_VCODEC );
     set_callbacks( Open, Close );