To uninstall xfonts-wqy just follow these instructions.
sudo apt-get remove xfonts-wqy
This will remove just the xfonts-wqy package itself.
sudo apt-get remove --auto-remove xfonts-wqy
This will remove the xfonts-wqy package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xfonts-wqy then this will work.
sudo apt-get purge xfonts-wqy
Or similarly, like this xfonts-wqy
sudo apt-get purge --auto-remove xfonts-wqy
|Maintainer||Debian Fonts Task Force <email@example.com>|
|Description||WenQuanYi Bitmap Song CJK font for X bitmap font for on-screen display of Chinese (traditional and simplified). It has arguably the most complete coverage for Chinese characters among all known open-source bitmap fonts, including CJK Unified Ideograph|