How to uninstall or remove elpa-diminish software package from Ubuntu 17.04 (Zesty Zapus)

You can uninstall or removes an installed elpa-diminish package itself from Ubuntu 17.04 (Zesty Zapus) through the terminal,

$ sudo apt-get remove elpa-diminish

Uninstall elpa-diminish including dependent package

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

$ sudo apt-get remove --auto-remove elpa-diminish

Use Purging elpa-diminish

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

$ sudo apt-get purge elpa-diminish

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 elpa-diminish