Remove dependency on nb_dims parameter in spatialtf descriptor

Signed-off-by: João Victor Tozatti Risso <joaovictor.risso@gmail.com>

Remove dependency on nb_dims parameter in spatialtf descriptor
c209e164 · João Victor Tozatti Risso · fda82536 · c209e164
--- a/theano/gpuarray/c_code/spatialtf_desc.c
+++ b/theano/gpuarray/c_code/spatialtf_desc.c
@@ -27,7 +27,7 @@ int APPLY_SPECIFIC(spatialtf_desc)(cudnnSpatialTransformerDescriptor_t * desc,
    // Currently, only the bilinear sampler is supported by cuDNN,
    // so it is not available as a parameter
    err = cudnnSetSpatialTransformerNdDescriptor( *desc, CUDNN_SAMPLER_BILINEAR,
-        params->dtype, params->nb_dims, out_tensor_dims );
+        params->dtype, 4, out_tensor_dims );
    if ( CUDNN_STATUS_SUCCESS != err )
    {
        PyErr_Format( PyExc_MemoryError,