$ sudo apt-get remove libdispatch0 

Uninstall libdispatch0 including dependent package

If you would like to remove libdispatch0 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libdispatch0 

Use Purging libdispatch0

If you use with purge options to libdispatch0 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libdispatch0 

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 libdispatch0 

See Also,