[orchagent] Fix: ERR swss#orchagent: :- setPortPvid: pvid setting for…

… tunnel Port_EVPN_XXX is not allowed (PR sonic-net#3402)

Tunnel ports are always tagged and can't be created as untagged.  But
the code currently tries to set a pvid on a tunnel which is disallowed
leading to an error in the logs.

This is a simple fix to get rid of the error in the logs.  It
does not actually change behavior in any way other than getting rid
of an error thus helping debugability.

Signed-off-by: Brad House (@bradh352)

orchagent/portsorch.cpp

@@ -5126,7 +5126,6 @@ void PortsOrch::doVlanMemberTask(Consumer &consumer)
                 it = consumer.m_toSync.erase(it);
                 continue;
             }
-
             if (addBridgePort(port) && addVlanMember(vlan, port, tagging_mode))
                 it = consumer.m_toSync.erase(it);
             else