net: dsa: felix: remove redundant assignment in felix_8021q_cpu_port_deinit

Due to an apparently incorrect conflict resolution on my part in commit
54c31984 ("net: mscc: ocelot: enforce FDB isolation when
VLAN-unaware"), "ocelot->ports[port]->is_dsa_8021q_cpu = false" was
supposed to be replaced by "ocelot_port_unset_dsa_8021q_cpu(ocelot, port)"
which does the same thing, and more. But now we have both, so the direct
assignment is redundant. Remove it.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/ocelot/felix.c

@@ -383,7 +383,6 @@ static void felix_8021q_cpu_port_deinit(struct ocelot *ocelot, int port)
 {
 	mutex_lock(&ocelot->fwd_domain_lock);
 
-	ocelot->ports[port]->is_dsa_8021q_cpu = false;
 	ocelot_port_unset_dsa_8021q_cpu(ocelot, port);
 
 	/* Restore PGID_CPU */