net: mediatek: Drop unneeded dependency on NET_VENDOR_MEDIATEK

The whole block is protected by "if NET_VENDOR_MEDIATEK", so there is
no need for individual driver config symbols to duplicate this
dependency.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mediatek/Kconfig

@@ -9,7 +9,6 @@ if NET_VENDOR_MEDIATEK
 
 config NET_MEDIATEK_SOC
 	tristate "MediaTek SoC Gigabit Ethernet support"
-	depends on NET_VENDOR_MEDIATEK
 	select PHYLIB
 	---help---
 	  This driver supports the gigabit ethernet MACs in the