Fix Py2 qualname

src/attr/_make.py

@@ -1971,11 +1971,7 @@ def __repr__(self):
                 return "..."
             real_cls = self.__class__
             if ns is None:
-                qualname = getattr(real_cls, "__qualname__", None)
-                if qualname is not None:
-                    class_name = qualname.rsplit(">.", 1)[-1]
-                else:
-                    class_name = real_cls.__name__
+                class_name = real_cls.__name__
             else:
                 class_name = ns + "." + real_cls.__name__