ctdb-scripts: Drop use of "smbcontrol winbindd ip-dropped ..."

This is unnecessary in Samba >= 4.0 because winbindd monitors IP
address itself and no longer needs to be told when they are dropped.
The smbcontrol commands can hang if a node has recovery mode active
because smbcontrol is unable to connect to the registry.  Therefore,
the smbcontrol commands should be removed.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11719

Signed-off-by: Martin Schwenke <[email protected]>
Reviewed-by: Ralph Boehme <[email protected]>

Autobuild-User(master): Ralph Böhme <[email protected]>
Autobuild-Date(master): Wed Feb 10 14:08:17 CET 2016 on sn-devel-144

ctdb/config/events.d/11.natgw

@@ -164,10 +164,6 @@ natgw_set_slave ()
 	_net="${_net_gw%@*}"
 	ip route add "$_net" via "$_natgwip" metric 10
     done
-
-    # Make sure winbindd does not stay bound to this address if we are
-    # no longer NATGW master
-    smbcontrol winbindd ip-dropped $CTDB_NATGW_PUBLIC_IP >/dev/null 2>&1
 }
 
 natgw_ensure_master ()

ctdb/config/events.d/49.winbind

@@ -55,13 +55,6 @@ case "$1" in
 	ctdb_check_command wbinfo -p
 	;;
 
-     takeip|releaseip)
-	iface=$2
-	ip=$3
-	maskbits=$4
-
-	smbcontrol winbindd ip-dropped $ip >/dev/null 2>/dev/null
-	;;
     *)
 	ctdb_standard_event_handler "$@"
 	;;