hw/net/rocker: Remove unused rocker_fp_ports

rocker_fp_ports hasn't been used since it was added back in 2015.
Remove it.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/net/rocker/rocker.c

@@ -134,11 +134,6 @@ RockerPortList *qmp_query_rocker_ports(const char *name, Error **errp)
     return list;
 }
 
-uint32_t rocker_fp_ports(Rocker *r)
-{
-    return r->fp_ports;
-}
-
 static uint32_t rocker_get_pport_by_tx_ring(Rocker *r,
                                             DescRing *ring)
 {

hw/net/rocker/rocker.h

@@ -72,7 +72,6 @@ DECLARE_INSTANCE_CHECKER(Rocker, ROCKER,
                          TYPE_ROCKER)
 
 Rocker *rocker_find(const char *name);
-uint32_t rocker_fp_ports(Rocker *r);
 int rocker_event_link_changed(Rocker *r, uint32_t pport, bool link_up);
 int rocker_event_mac_vlan_seen(Rocker *r, uint32_t pport, uint8_t *addr,
                                uint16_t vlan_id);