Revert "winbind: Retry after SESSION_EXPIRED error in ping-dc"

Revert "winbind: Retry after SESSION_EXPIRED error in ping-dc"

This reverts commit a2670f15dea27c10e3827216adf572f9c3894f85.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11670

cm_connect_netlogon now handles the retry for an expired session.

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jan 13 03:35:57 CET 2016 on sn-devel-144

(cherry picked from commit 6f3656c47d8ae6a3ac10591ffd7a60797775b469)

Autobuild-User(v4-3-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-3-test): Thu Jan 14 13:21:52 CET 2016 on sn-devel-104