Remove dead code

jedi/evaluate/gradual/typing.py

@@ -616,9 +616,6 @@ class AnnotatedClass(AbstractAnnotatedClass):
     def get_generics(self):
         return list(_iter_over_arguments(self._index_context, self._context_of_index))
 
-    def annotate_other_class(self, cls):
-        return AnnotatedClass(cls, self._index_context, self._context_of_index)
-
 
 class AnnotatedSubClass(AbstractAnnotatedClass):
     def __init__(self, class_context, generics):