You can uninstall or removes an installed blacs-pvm-test package itself from Ubuntu 16.10 (Yakkety Yak) through the terminal,
$ sudo apt-get remove blacs-pvm-test
If you would like to remove blacs-pvm-test and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove blacs-pvm-test
If you use with purge options to blacs-pvm-test package all the configuration and dependent packages will be removed.
$ sudo apt-get purge blacs-pvm-test
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 blacs-pvm-test