$ sudo apt-get remove libgbm1 

Uninstall libgbm1 including dependent package

If you would like to remove libgbm1 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libgbm1 

Use Purging libgbm1

If you use with purge options to libgbm1 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libgbm1 

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 libgbm1 

See Also,