How to uninstall or remove declarative-plasmoids software package from Ubuntu 14.04 LTS (Trusty Tahr)

You can uninstall or removes an installed declarative-plasmoids package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,

$ sudo apt-get remove declarative-plasmoids

Uninstall declarative-plasmoids including dependent package

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

$ sudo apt-get remove --auto-remove declarative-plasmoids

Use Purging declarative-plasmoids

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

$ sudo apt-get purge declarative-plasmoids

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 declarative-plasmoids