revert unnecessary hunk

From-SVN: r156738

gcc/cp/ChangeLog

 2010-02-12  Jason Merrill  <jason@redhat.com>
 
 	PR c++/43054
-	* tree.c (cp_tree_equal): Correct CALL_EXPR logic, handle
-	EXPR_PACK_EXPANSION.
+	* tree.c (cp_tree_equal): Correct CALL_EXPR logic.
 
 2010-02-12  Jakub Jelinek  <jakub@redhat.com>
 

gcc/cp/tree.c

@@ -2199,10 +2199,6 @@ cp_tree_equal (tree t1, tree t2)
       return same_type_p (TRAIT_EXPR_TYPE1 (t1), TRAIT_EXPR_TYPE1 (t2))
 	&& same_type_p (TRAIT_EXPR_TYPE2 (t1), TRAIT_EXPR_TYPE2 (t2));
 
-    case EXPR_PACK_EXPANSION:
-      return cp_tree_equal (PACK_EXPANSION_PATTERN (t1),
-			    PACK_EXPANSION_PATTERN (t2));
-
     default:
       break;
     }