To uninstall xsunpinyin just follow these instructions.
sudo apt-get remove xsunpinyin
This will remove just the xsunpinyin package itself.
sudo apt-get remove --auto-remove xsunpinyin
This will remove the xsunpinyin package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xsunpinyin then this will work.
sudo apt-get purge xsunpinyin
Or similarly, like this xsunpinyin
sudo apt-get purge --auto-remove xsunpinyin
|Maintainer||IME Packaging Team <firstname.lastname@example.org>|
|Description||Standalone XIM server for Sunpinyin engine for Simplified Chinese, it features full sentence input.|