Removed unused board_* functions

Signed-off-by: Jan Kraus <mayosemmel@gmail.com>
Reviewed-by: Steffen Pankratz <kratz00@gmx.de>
Reviewed-by: Tim Niemeyer <tim@tn-x.org>

bsp/board_ar71xx.bsp

@@ -20,11 +20,3 @@ images=("openwrt-ar71xx-generic-ubnt-nano-m-squashfs-sysupgrade.bin"
         "openwrt-ar71xx-generic-tl-mr3020-v1-squashfs-sysupgrade.bin"
         "openwrt-ar71xx-generic-ubnt-bullet-m-squashfs-sysupgrade.bin"
         )
-
-board_prepare() {
-    echo "nothing todo" > /dev/null
-}
-
-board_prebuild() {
-    echo "nothing todo" > /dev/null
-}

bsp/board_wdr4300.bsp

@@ -7,11 +7,3 @@ images=(
         "openwrt-ar71xx-generic-tl-wdr4300-v1-squashfs-sysupgrade.bin"
         "openwrt-ar71xx-generic-tl-wdr4310-v1-squashfs-sysupgrade.bin"
        )
-
-board_prepare() {
-    echo "nothing todo" > /dev/null
-}
-
-board_prebuild() {
-    echo "nothing todo" > /dev/null
-}

bsp/board_wdr4900.bsp

@@ -5,11 +5,3 @@ target=$builddir/$machine
 images=(
         "openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-sysupgrade.bin"
        )
-
-board_prepare() {
-	echo "nothing todo" > /dev/null
-}
-
-board_prebuild() {
-	echo "nothing todo" > /dev/null
-}

buildscript

@@ -166,8 +166,6 @@ prepare() {
     #saves ~200MB for each build
     test -d ./src/dl || mkdir ./src/dl
     ln -s ../../src/dl "$target"/dl
-
-    board_prepare
 }
 
 prebuild() {
@@ -179,8 +177,6 @@ prebuild() {
     cp -r ./bsp/"$machine"/root_file_system/* "$target"/files/
     cp ./bsp/"$machine"/.config "$target"/.config
 
-    board_prebuild
-
     while IFS= read -r -d '' template
     do
         echo "Translating $template .."