Remove some bpi changes

root/target/linux/mediatek/base-files/lib/preinit/06_set_rps_sock_flow

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-set_rps_sock_flow() {
-	echo 1024 > /proc/sys/net/core/rps_sock_flow_entries
-}
-
-boot_hook_add preinit_main set_rps_sock_flow
-

root/target/linux/mediatek/base-files/lib/preinit/07_set_iface_mac

@@ -1,48 +0,0 @@
-#!/bin/sh
-# Copyright (C) 2018 OpenWrt.org
-
-RECOVERY_PART=/dev/mmcblk0p1
-
-preinit_set_mac_address() {
-	local mac
-
-	. /lib/functions.sh
-	. /lib/functions/system.sh
-
-	case $(board_name) in
-	'bananapi,bpi-r2'|\
-	"unielec,u7623"*)
-		if [ -b $RECOVERY_PART ]; then
-			insmod nls_cp437
-			insmod nls_iso8859-1
-			insmod fat
-			insmod vfat
-			mkdir -p /tmp/recovery
-			mount -o rw,noatime $RECOVERY_PART /tmp/recovery
-
-			if [ -f "/tmp/recovery/mac_addr" ];
-			then
-				mac=$(cat /tmp/recovery/mac_addr)
-			else
-				mac=$(cat /sys/class/net/eth0/address)
-				echo "$mac" > /tmp/recovery/mac_addr
-			fi
-
-			sync
-			umount /tmp/recovery
-			rm -rf /tmp/recovery
-		fi
-
-		ip link set dev lan address $mac 2> /dev/null
-
-		mac=$(macaddr_add $mac 1)
-
-		ip link set dev wan1 address $mac 2>/dev/null
-		ip link set dev wan2 address $mac 2>/dev/null
-		ip link set dev wan3 address $mac 2>/dev/null
-		ip link set dev wan4 address $mac 2>/dev/null
-		;;
-	esac
-}
-
-boot_hook_add preinit_main preinit_set_mac_address

root/target/linux/mediatek/base-files/lib/preinit/79_move_config

@@ -1,19 +0,0 @@
-#!/bin/sh
-# Copyright (C) 2015 OpenWrt.org
-
-RECOVERY_PART=/dev/mmcblk0p1
-
-move_config() {
-	if [ -b $RECOVERY_PART ]; then
-		insmod nls_cp437
-		insmod nls_iso8859-1
-		insmod fat
-		insmod vfat
-		mkdir -p /recovery
-		mount -o rw,noatime $RECOVERY_PART /recovery
-		[ -f /recovery/sysupgrade.tgz ] && mv -f /recovery/sysupgrade.tgz /
-		umount /recovery
-	fi
-}
-
-boot_hook_add preinit_mount_root move_config

root/target/linux/mediatek/base-files/lib/preinit/90_init_jffs2

@@ -1,7 +0,0 @@
-#!/bin/sh
-do_firstboot() {
-	if [ "$(mount | grep jffs2)" = "" ]; then
-		/sbin/firstboot -y
-	fi
-}
-boot_hook_add preinit_main do_firstboot