Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(revision 18963)
+++ wp-includes/post.php	(working copy)
@@ -1276,7 +1276,7 @@
  *
  * @since 3.0.0
  * @param string $post_type The post type for which to remove the feature
- * @param string $feature The feature being removed
+ * @param string|array $feature The feature being removed, can be an array of feature strings or a single string
  */
 function remove_post_type_support( $post_type, $feature ) {
 	global $_wp_post_type_features;
@@ -1284,8 +1284,11 @@
 	if ( !isset($_wp_post_type_features[$post_type]) )
 		return;
 
-	if ( isset($_wp_post_type_features[$post_type][$feature]) )
-		unset($_wp_post_type_features[$post_type][$feature]);
+	foreach ( (array) $feature as $the_feature ) {
+	 	if ( isset( $_wp_post_type_features[$post_type][$the_feature] ) ) {
+			unset( $_wp_post_type_features[$post_type][$the_feature] );
+		}
+	}
 }
 
 /**