$ sudo apt-get remove libcangjie2 

Uninstall libcangjie2 including dependent package

If you would like to remove libcangjie2 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libcangjie2 

Use Purging libcangjie2

If you use with purge options to libcangjie2 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libcangjie2 

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 libcangjie2 

See Also,