Remove the contiguous restriction on input, it works without it.

theano/gpuarray/dnn_redux.c

@@ -61,11 +61,6 @@ int APPLY_SPECIFIC(dnn_redux)(PyGpuArrayObject *input,
   static float fbeta = 0.0f;
   static double dbeta = 0.0;  
 
-  if (!GpuArray_IS_C_CONTIGUOUS(&input->ga)) {
-    PyErr_SetString(PyExc_ValueError, "Only contiguous inputs are supported.");
-    return 1;
-  }
-
   if (c_set_tensorNd(input, APPLY_SPECIFIC(input)) != 0)
     return 1;