infinitepush: delete the hack to load the extension after remotenames

The remotenames extension which circumvents the default push implementation
lives outside the core, so let's delete logic related to loading of extension on
the basis of remotenames ext.

Differential Revision: https://phab.mercurial-scm.org/D2099

hgext/infinitepush/__init__.py

@@ -286,14 +286,6 b' def reposetup(ui, repo):'
     if _isserver(ui) and repo.local():
         repo.bundlestore = bundlestore(repo)
 
-def uisetup(ui):
-    # remotenames circumvents the default push implementation entirely, so make
-    # sure we load after it so that we wrap it.
-    order = extensions._order
-    order.remove('infinitepush')
-    order.append('infinitepush')
-    extensions._order = order
-
 def extsetup(ui):
     commonsetup(ui)
     if _isserver(ui):