remove apparently redundant loop in type inference

Cython/Compiler/TypeInference.py

@@ -429,10 +429,8 @@ class SimpleAssignmentTypeInferer(object):
             # try to handle circular references
             partials = set()
             for assmt in assignments:
-                partial_types = []
                 if assmt in partial_assmts:
                     continue
-                for node in assmt_to_names[assmt]:
                 if partial_infer(assmt):
                     partials.add(assmt)
                     assmts_resolved.add(assmt)