rename: drop an unnecessary variable declaration at a wider scope

mercurial/commands.py

@@ -6034,7 +6034,7 b' def rename(ui, repo, *pats, **opts):'
     """
     context = lambda repo: repo.dirstate.changing_files(repo)
     rev = opts.get('at_rev')
-    ctx = None
+
     if rev:
         ctx = logcmdutil.revsingle(repo, rev)
         if ctx.rev() is not None: