Remove comments

theano/scan_module/scan_utils.py

@@ -509,12 +509,6 @@ def expand( tensor_var, size):
     # Corner case that I might use in an optimization
     if size == 0:
         return tensor_var
-    #shapes      = [ tensor_var.shape[x] for x in xrange(tensor_var.ndim) ]
-    #zeros_shape = [size] + shapes[1:]
-    #empty       = tensor.zeros( zeros_shape
-    #                          , dtype = tensor_var.dtype)
-    #return tensor.join(0, tensor_var, empty)
-    # V2:
     shapes      = [ tensor_var.shape[x] for x in xrange(tensor_var.ndim) ]
     zeros_shape = [size+shapes[0]] + shapes[1:]
     empty       = tensor.zeros( zeros_shape