$ sudo apt-get remove gdbserver 

Uninstall gdbserver including dependent package

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

$ sudo apt-get remove --auto-remove gdbserver 

Use Purging gdbserver

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

$ sudo apt-get purge gdbserver 

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 gdbserver 

See Also,