$ sudo apt-get remove icmptx 

Uninstall icmptx including dependent package

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

$ sudo apt-get remove --auto-remove icmptx 

Use Purging icmptx

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

$ sudo apt-get purge icmptx 

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 icmptx 

See Also,