net: dsa: ksz: Drop NET_DSA_TAG_KSZ9477

This Kconfig option is unused, drop it.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/microchip/Kconfig

@@ -5,7 +5,6 @@ config NET_DSA_MICROCHIP_KSZ_COMMON
 menuconfig NET_DSA_MICROCHIP_KSZ9477
 	tristate "Microchip KSZ9477 series switch support"
 	depends on NET_DSA
-	select NET_DSA_TAG_KSZ9477
 	select NET_DSA_MICROCHIP_KSZ_COMMON
 	help
 	  This driver adds support for Microchip KSZ9477 switch chips.

net/dsa/Kconfig

@@ -84,13 +84,6 @@ config NET_DSA_TAG_KSZ
 	  Say Y if you want to enable support for tagging frames for the
 	  Microchip 9893 family of switches.
 
-config NET_DSA_TAG_KSZ9477
-	tristate "Tag driver for Microchip 9477 family of switches"
-	select NET_DSA_TAG_KSZ_COMMON
-	help
-	  Say Y if you want to enable support for tagging frames for the
-	  Microchip 9477 family of switches.
-
 config NET_DSA_TAG_QCA
 	tristate "Tag driver for Qualcomm Atheros QCA8K switches"
 	help