To uninstall mime-support just follow these instructions.
sudo apt-get remove mime-support
This will remove just the mime-support package itself.
sudo apt-get remove --auto-remove mime-support
This will remove the mime-support package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for mime-support then this will work.
sudo apt-get purge mime-support
Or similarly, like this mime-support
sudo apt-get purge --auto-remove mime-support
|Maintainer||Mime-Support Maintainers <email@example.com>|
|Description||MIME files 'mime.types' & 'mailcap', and support programs|