--- a/dom/bindings/Codegen.py
+++ b/dom/bindings/Codegen.py
@@ -2264,32 +2264,16 @@ class MethodDefiner(PropertyDefiner):
                 "name": "@@iterator",
                 "methodInfo": False,
                 "selfHostedName": "ArrayValues",
                 "length": 0,
                 "flags": "JSPROP_ENUMERATE",
                 "condition": MemberCondition()
             })
 
-        # Output an @@iterator for generated iterator interfaces.  This should
-        # not be necessary, but
-        # https://bugzilla.mozilla.org/show_bug.cgi?id=1091945 means that
-        # %IteratorPrototype%[@@iterator] is a broken puppy.
-        if (not static and
-            not unforgeable and
-            descriptor.interface.isIteratorInterface()):
-            self.regular.append({
-                "name": "@@iterator",
-                "methodInfo": False,
-                "selfHostedName": "IteratorIdentity",
-                "length": 0,
-                "flags": "0",
-                "condition": MemberCondition()
-            })
-
         # Generate the maplike/setlike iterator, if one wasn't already
         # generated by a method. If we already have an @@iterator symbol, fail.
         if descriptor.interface.maplikeOrSetlikeOrIterable:
             if hasIterator(methods, self.regular):
                 raise TypeError("Cannot have maplike/setlike/iterable interface with "
                                 "other members that generate @@iterator "
                                 "on interface %s, such as indexed getters "
                                 "or aliased functions." %