Revert "remote-hg: update bookmarks when pulling"

This reverts commit 24317ef.

Different versions of Mercurial have different arguments for
bookmarks.updatefromremote(), while it should be possible to call the
right function with the right arguments depending on the version, it's
safer to restore the old behavior for now.

Reported by Rodney Lorrimar.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/remote-helpers/git-remote-hg

@@ -363,9 +363,6 @@ def get_repo(url, alias):
                 die('Repository error')
             repo.pull(peer, heads=None, force=True)
 
-        rb = peer.listkeys('bookmarks')
-        bookmarks.updatefromremote(myui, repo, rb, url)
-
     return repo
 
 def rev_to_mark(rev):