Cleaning up 2.4 backport code

theano/scalar/basic.py

@@ -896,9 +896,6 @@ class Clip(ScalarOp):
             return max
         else:
             return x
-
-        #backport
-        #return min if x < min else max if x > max else x
     def c_code(self, node, name, (x, min, max), (z, ), sub):
         return "%(z)s = %(x)s < %(min)s ? %(min)s : %(x)s > %(max)s ? %(max)s : %(x)s;" % locals()
     def grad(self, (x, min, max), (gz, )):