mediatek: drop kmod-switch-rtl8367s package

Dropping kmod-switch-rtl8367s leaves it with zero in-tree users. Clean up
the tree by removing its definition in modules.mk.

Keep Realtek SDK located under
target/linux/mediatek/files/drivers/net/phy/rtk/ untouched since it's
necessary for mt7622 devices:
- totolink,a8000ru
- elecom,wrc-2533gent
- buffalo,wsr-2533dhp2

Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Link: openwrt/openwrt#24435
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>

Author: csharper2005

target/linux/mediatek/modules.mk

@@ -56,18 +56,3 @@ define KernelPackage/phy-mediatek-2p5g/description
 endef
 
 $(eval $(call KernelPackage,phy-mediatek-2p5g))
-
-
-define KernelPackage/switch-rtl8367s
-  SUBMENU:=Network Devices
-  TITLE:=Realtek RTL8367S switch support
-  KCONFIG:= \
-	CONFIG_RTL8367S_GSW \
-	CONFIG_SWCONFIG=y
-  DEPENDS:=@TARGET_mediatek +kmod-swconfig
-  FILES:= \
-	$(LINUX_DIR)/drivers/net/phy/rtk/rtl8367s_gsw.ko
-  AUTOLOAD:=$(call AutoProbe,rtl8367s_gsw,1)
-endef
-
-$(eval $(call KernelPackage,switch-rtl8367s))