net: remove w90p910-ether driver

The ARM w90x900 platform is getting removed, so this driver is obsolete.

Link: https://lore.kernel.org/r/20190809202749.742267-14-arnd@arndb.deSigned-off-by: Arnd Bergmann <arnd@arndb.de>

drivers/net/ethernet/Kconfig

@@ -151,7 +151,6 @@ config NET_NETX
 	  To compile this driver as a module, choose M here. The module
 	  will be called netx-eth.
 
-source "drivers/net/ethernet/nuvoton/Kconfig"
 source "drivers/net/ethernet/nvidia/Kconfig"
 source "drivers/net/ethernet/nxp/Kconfig"
 source "drivers/net/ethernet/oki-semi/Kconfig"

drivers/net/ethernet/Makefile

@@ -65,7 +65,6 @@ obj-$(CONFIG_NET_VENDOR_NETERION) += neterion/
 obj-$(CONFIG_NET_VENDOR_NETRONOME) += netronome/
 obj-$(CONFIG_NET_VENDOR_NI) += ni/
 obj-$(CONFIG_NET_NETX) += netx-eth.o
-obj-$(CONFIG_NET_VENDOR_NUVOTON) += nuvoton/
 obj-$(CONFIG_NET_VENDOR_NVIDIA) += nvidia/
 obj-$(CONFIG_LPC_ENET) += nxp/
 obj-$(CONFIG_NET_VENDOR_OKI) += oki-semi/

drivers/net/ethernet/nuvoton/Kconfig

-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Nuvoton network device configuration
-#
-
-config NET_VENDOR_NUVOTON
-	bool "Nuvoton devices"
-	default y
-	depends on ARM && ARCH_W90X900
-	---help---
-	  If you have a network (Ethernet) card belonging to this class, say Y.
-
-	  Note that the answer to this question doesn't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about Nuvoton cards. If you say Y, you will be asked
-	  for your specific card in the following questions.
-
-if NET_VENDOR_NUVOTON
-
-config W90P910_ETH
-	tristate "Nuvoton w90p910 Ethernet support"
-	depends on ARM && ARCH_W90X900
-	select PHYLIB
-	select MII
-	---help---
-	  Say Y here if you want to use built-in Ethernet ports
-	  on w90p910 processor.
-
-endif # NET_VENDOR_NUVOTON

drivers/net/ethernet/nuvoton/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for the Nuvoton network device drivers.
-#
-
-obj-$(CONFIG_W90P910_ETH) += w90p910_ether.o