docs: def remove_plugin(self, f):
          """Remvoing a deleted plugin.
  
          Args:
              f: the filepath for the plugin.
          """
          if f.endswith('.py'):
              plugin_name = os.path.splitext(os.path.basename(f))[0]
              print '- %s %sREMOVED' % (plugin_name, color.Red)
              print '\t%sNote: still in memory, restart Workbench to remove...%s' % \
                    (color.Yellow, color.Normal)