Cosmetic changes

theano/tensor/basic.py

@@ -2850,7 +2850,6 @@ class Join(Op):
             node.tag.shape_zero = None
         else:
             node.tag.shape_zero = len(orig)
-        #backport node.tag.shape_zero = None if any(not x.type.broadcastable[0] for x in orig) else len(orig)
         return node
 
     def perform(self, node, axis_and_tensors, (out, )):