[PATCH 3 of 5 v2] archival: drop py2.5 taropen workaround

[timeless]

# HG changeset patch
# User timeless <timeless at mozdev.org>
# Date 1444944158 14400
#      Thu Oct 15 17:22:38 2015 -0400
# Node ID fc33b48966cfa28f7abc415cf6ba98a37bbf4e52
# Parent  30001a3db4191ec0eac6c7b3519d7c04cfc57279
archival: drop py2.5 taropen workaround

diff --git a/mercurial/archival.py b/mercurial/archival.py
--- a/mercurial/archival.py
+++ b/mercurial/archival.py
@@ -154,11 +154,7 @@
             else:
                 return tarfile.open(name, mode + kind, fileobj)
 
-        if isinstance(dest, str):
-            self.z = taropen(dest, mode='w:')
-        else:
-            # Python 2.5-2.5.1 have a regression that requires a name arg
-            self.z = taropen(name='', mode='w|', fileobj=dest)
+        self.z = taropen(dest, mode='w:')
 
     def addfile(self, name, mode, islink, data):
         i = tarfile.TarInfo(name)