batman-adv: Fix double-hold of meshif when getting enabled

[Sven Eckelmann]

Fixes: 00b35530811f ("batman-adv: adopt netdev_hold() / netdev_put()")
Signed-off-by: Sven Eckelmann <s...@narfation.org>

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 
f145f96626531053bbf8f58a31f28f625a9d80f9..7cd4bdcee43935b9e5fb7d1696430909b7af67b4
 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -725,7 +725,6 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface 
*hard_iface,
 
        kref_get(&hard_iface->refcount);
 
-       dev_hold(mesh_iface);
        netdev_hold(mesh_iface, &hard_iface->meshif_dev_tracker, GFP_ATOMIC);
        hard_iface->mesh_iface = mesh_iface;
        bat_priv = netdev_priv(hard_iface->mesh_iface);