Remove useless assert

assert is called on props, but we can only get to assert if props is
true. bandit audit flagged the statement, so I removed it since it
wasn't needed.

Author: rouilj

roundup/cgi/actions.py

@@ -654,8 +654,6 @@ def _editnodes(self, all_props, all_links):
                         # a visible (non-quiet) property.
                         pass
                 else:
-                    assert props
-
                     # make a new node
                     newid = self._createnode(cn, props)
                     if nodeid is None: