Add a process to test port removal
Add a process to test port removal

Kitware/sprokit,linus-sherrill/sprokit,mathstuf/sprokit,linus-sherrill/sprokit,mathstuf/sprokit,mathstuf/sprokit,mathstuf/sprokit,Kitware/sprokit,linus-sherrill/sprokit,Kitware/sprokit,linus-sherrill/sprokit,Kitware/sprokit