How to uninstall or remove qgis-api-doc software package from Ubuntu 14.04 LTS (Trusty Tahr)

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

$ sudo apt-get remove qgis-api-doc

Uninstall qgis-api-doc including dependent package

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

$ sudo apt-get remove --auto-remove qgis-api-doc

Use Purging qgis-api-doc

If you use with purge options to qgis-api-doc package all the configuration and dependent packages will be removed.

$ sudo apt-get purge qgis-api-doc

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 qgis-api-doc