path: directly use the push_variant in outgoing internals

We don't need any extra processing now.

mercurial/hg.py

@@ -1380,7 +1380,7 b' def _outgoing(ui, repo, dests, opts, sub'
     out = set()
     others = []
     for path in urlutil.get_push_paths(repo, ui, dests):
-        dest = path.pushloc or path.loc
+        dest = path.loc
         if subpath is not None:
             subpath = urlutil.url(subpath)
             if subpath.isabs():