Remove warning as it work now!

theano/sandbox/cuda/opt.py

@@ -1288,7 +1288,6 @@ def local_conv_gemm(node):
     if (isinstance(node.op, GpuConv) and
         node.op.border_mode == 'valid' and
         node.op.subsample == (1, 1)):
-        print "WARNING, YOU ARE USING BUGGED CODE!"
         img, kern = node.inputs
         img = gpu_contiguous(img)
         kern = kern[:, :, ::-1, ::-1]