mediatek: drop kernel dep on userland module

Signed-off-by: John Crispin <[email protected]>

target/linux/mediatek/modules.mk

@@ -1,7 +1,7 @@
 define KernelPackage/mediatek_hnat
   SUBMENU:=Network Devices
   TITLE:=MT7623 HNAT
-  DEPENDS:=@TARGET_mediatek +kmod-nf-conntrack +iptables-mod-ipmark
+  DEPENDS:=@TARGET_mediatek +kmod-nf-conntrack
   KCONFIG:= CONFIG_NET_MEDIATEK_HNAT=y
   FILES:= \
 	$(LINUX_DIR)/drivers/net/ethernet/mediatek/mtk_hnat/mtkhnat.ko