How to uninstall cuDNN v7.0?

I have trouble in verifying cuDNN v7.0. First navigate to the directory

cd $HOME/cudnn_samples_v7/mnistCUDNN
make clean && make

I get wrong in this step and it shows “fatal error: driver_types.h doesn’t exit. Makefile:200: recipe for target ‘fp16_emu.o’ failed. …”
Can anyone help me? By the way, if I want to completely uninstall cuDNN, what should I do in Ubuntu terminal? Thank you.

This may help:

https://devtalk.nvidia.com/default/topic/1006726/gpu-accelerated-libraries/cudnnv6-mnist-example-compile-errors/post/5141355/#5141355