remove duplicate variable not used. They are already in self.

theano/scan_module/scan_op.py

@@ -598,12 +598,6 @@ class Scan(PureOp):
                 for _d1 in range(cython_mit_mot_out_nslices[_d0]):
                     cython_mit_mot_out_slices[_d0, _d1] = \
                         self.mit_mot_out_slices[_d0][_d1]
-            vector_seqs = [seq.ndim == 1 for seq in
-                                 node.inputs[1:1 + self.n_seqs]]
-            vector_outs = [arg.ndim == 1 for arg in
-                                 node.inputs[1 + self.n_seqs:
-                                             (1 + self.n_seqs + self.n_outs)]]
-            vector_outs += [False] * self.n_nit_sot
 
             cython_vector_seqs = numpy.asarray(self.vector_seqs,
                                                     dtype='int32')