drivers/network: Remove remaining declarations of "devclass".

Mainly the ported OpenBSD drivers (where this was added in Haiku-specific
code), and then the few remaining drivers that are no longer supported
on FreeBSD.

src/add-ons/kernel/drivers/network/ether/dec21xxx/dev/de/if_de.c

@@ -4909,9 +4909,7 @@ static driver_t tulip_pci_driver = {
     sizeof(tulip_softc_t),
 };
 
-static devclass_t tulip_devclass;
+DRIVER_MODULE(de, pci, tulip_pci_driver, 0, 0);
-
-DRIVER_MODULE(de, pci, tulip_pci_driver, tulip_devclass, 0, 0);
 
 #ifdef DDB
 void	tulip_dumpring(int unit, int ring);

src/add-ons/kernel/drivers/network/ether/pcnet/dev/pcn/if_pcn.c

@@ -190,12 +190,10 @@ static driver_t pcn_driver = {
 	sizeof(struct pcn_softc)
 };
 
-static devclass_t pcn_devclass;
+DRIVER_MODULE(pcn, pci, pcn_driver, 0, 0);
-
-DRIVER_MODULE(pcn, pci, pcn_driver, pcn_devclass, 0, 0);
 MODULE_PNP_INFO("U16:vendor;U16:device", pci, pcn, pcn_devs,
     nitems(pcn_devs) - 1);
-DRIVER_MODULE(miibus, pcn, miibus_driver, miibus_devclass, 0, 0);
+DRIVER_MODULE(miibus, pcn, miibus_driver, 0, 0);
 
 #define PCN_CSR_SETBIT(sc, reg, x)			\
 	pcn_csr_write(sc, reg, pcn_csr_read(sc, reg) | (x))

src/add-ons/kernel/drivers/network/ether/rtl8125/dev/pci/if_rge.c

@@ -414,9 +414,7 @@ static driver_t rge_pci_driver = {
 	sizeof (struct rge_softc)
 };
 
-static devclass_t rge_devclass;
+DRIVER_MODULE(rge, pci, rge_pci_driver, NULL, NULL);
-
-DRIVER_MODULE(rge, pci, rge_pci_driver, rge_devclass, NULL, NULL);
 #else
 int
 rge_activate(struct device *self, int act)

src/add-ons/kernel/drivers/network/ether/sis900/dev/sis/if_sis.c

@@ -2406,7 +2406,5 @@ static driver_t sis_driver = {
 	sizeof(struct sis_softc)
 };
 
-static devclass_t sis_devclass;
+DRIVER_MODULE(sis, pci, sis_driver, 0, 0);
-
+DRIVER_MODULE(miibus, sis, miibus_driver, 0, 0);
-DRIVER_MODULE(sis, pci, sis_driver, sis_devclass, 0, 0);
-DRIVER_MODULE(miibus, sis, miibus_driver, miibus_devclass, 0, 0);

src/add-ons/kernel/drivers/network/wlan/aironetwifi/dev/an/if_an_pci.c

@@ -270,9 +270,7 @@ static driver_t an_pci_driver = {
 	sizeof(struct an_softc),
 };
 
-static devclass_t an_devclass;
+DRIVER_MODULE(an, pci, an_pci_driver, 0, 0);
-
-DRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0);
 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, an,
     an_devs, nitems(an_devs) - 1);
 MODULE_DEPEND(an, pci, 1, 1, 1);

src/add-ons/kernel/drivers/network/wlan/atheroswifi/dev/ath/if_ath_pci.c

@@ -464,8 +464,7 @@ static driver_t ath_pci_driver = {
 	ath_pci_methods,
 	sizeof (struct ath_pci_softc)
 };
-static	devclass_t ath_devclass;
+DRIVER_MODULE(if_ath_pci, pci, ath_pci_driver, 0, 0);
-DRIVER_MODULE(if_ath_pci, pci, ath_pci_driver, ath_devclass, 0, 0);
 MODULE_VERSION(if_ath_pci, 1);
 MODULE_DEPEND(if_ath_pci, wlan, 1, 1, 1);		/* 802.11 media layer */
 MODULE_DEPEND(if_ath_pci, ath_main, 1, 1, 1);	/* if_ath driver */

src/add-ons/kernel/drivers/network/wlan/iaxwifi200/dev/pci/if_iwx.c

@@ -11571,9 +11571,7 @@ static driver_t iwx_pci_driver = {
 	sizeof (struct iwx_softc)
 };
 
-static devclass_t iwx_devclass;
+DRIVER_MODULE(iwx, pci, iwx_pci_driver, NULL, NULL);
-
-DRIVER_MODULE(iwx, pci, iwx_pci_driver, iwx_devclass, NULL, NULL);
 #else
 int
 iwx_activate(struct device *self, int act)

src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/pci/if_iwm.c

@@ -12277,9 +12277,7 @@ static driver_t iwm_pci_driver = {
 	sizeof (struct iwm_softc)
 };
 
-static devclass_t iwm_devclass;
+DRIVER_MODULE(iwm, pci, iwm_pci_driver, NULL, NULL);
-
-DRIVER_MODULE(iwm, pci, iwm_pci_driver, iwm_devclass, NULL, NULL);
 #else
 int
 iwm_activate(struct device *self, int act)