$ sudo apt-get remove clang-tidy 

Uninstall clang-tidy including dependent package

If you would like to remove clang-tidy and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove clang-tidy 

Use Purging clang-tidy

If you use with purge options to clang-tidy package all the configuration and dependent packages will be removed.

$ sudo apt-get purge clang-tidy 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove clang-tidy 

See Also,