Index: trunk/wp-includes/post.php
===================================================================
--- trunk/wp-includes/post.php	(revision 15335)
+++ trunk/wp-includes/post.php	(working copy)
@@ -1012,12 +1012,14 @@
  */
 function remove_post_type_support( $post_type, $feature ) {
 	global $_wp_post_type_features;
+	$features = (array) $feature;
+	foreach($features as $feature) {
+		if ( !isset($_wp_post_type_features[$post_type]) )
+			return;
 
-	if ( !isset($_wp_post_type_features[$post_type]) )
-		return;
-
-	if ( isset($_wp_post_type_features[$post_type][$feature]) )
-		unset($_wp_post_type_features[$post_type][$feature]);
+		if ( isset($_wp_post_type_features[$post_type][$feature]) )
+			unset($_wp_post_type_features[$post_type][$feature]);
+	}
 }
 
 /**