clean up out ports when we are not using them
clean up out ports when we are not using them

tufts-LPC/blockytalky,tufts-LPC/blockytalky,LaboratoryForPlayfulComputation/blockytalky,tufts-LPC/blockytalky,LaboratoryForPlayfulComputation/blockytalky,tufts-LPC/blockytalky,LaboratoryForPlayfulComputation/blockytalky,LaboratoryForPlayfulComputation/blockytalky,LaboratoryForPlayfulComputation/blockytalky,tufts-LPC/blockytalky