diff --git a/bsp/board_wdr4300.bsp b/bsp/board_wdr4300.bsp
index 60b86481..065232f2 100644
--- a/bsp/board_wdr4300.bsp
+++ b/bsp/board_wdr4300.bsp
@@ -23,10 +23,6 @@ board_postbuild() {
     cp $target/bin/ar71xx/openwrt-ar71xx-generic-tl-wdr4310-v1-squashfs-sysupgrade.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }
diff --git a/bsp/board_wdr4900.bsp b/bsp/board_wdr4900.bsp
index 8cbdb0b6..598538cb 100644
--- a/bsp/board_wdr4900.bsp
+++ b/bsp/board_wdr4900.bsp
@@ -14,10 +14,6 @@ board_postbuild() {
     cp $target/bin/mpc85xx/openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-sysupgrade.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }
diff --git a/bsp/board_wr1043nd.bsp b/bsp/board_wr1043nd.bsp
index 2051df43..98d54cc1 100644
--- a/bsp/board_wr1043nd.bsp
+++ b/bsp/board_wr1043nd.bsp
@@ -16,10 +16,6 @@ board_postbuild() {
 	cp $target/bin/ar71xx/openwrt-ar71xx-generic-tl-wr1043nd-v2-squashfs-sysupgrade.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }
diff --git a/bsp/board_wr740n.bsp b/bsp/board_wr740n.bsp
index c6efb74d..123040b4 100644
--- a/bsp/board_wr740n.bsp
+++ b/bsp/board_wr740n.bsp
@@ -13,10 +13,6 @@ board_postbuild() {
 	cp $target/bin/ar71xx/openwrt-ar71xx-generic-tl-wr740n-v4-squashfs-*.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }
diff --git a/bsp/board_wr741.bsp b/bsp/board_wr741.bsp
index 00ccb3f8..6b5150c2 100644
--- a/bsp/board_wr741.bsp
+++ b/bsp/board_wr741.bsp
@@ -14,10 +14,6 @@ board_postbuild() {
 	cp $target/bin/ar71xx/openwrt-ar71xx-generic-tl-wr741nd-v4-squashfs-*.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }
diff --git a/bsp/board_wr841.bsp b/bsp/board_wr841.bsp
index 1505390b..8de29e3e 100644
--- a/bsp/board_wr841.bsp
+++ b/bsp/board_wr841.bsp
@@ -15,10 +15,6 @@ board_postbuild() {
 	cp $target/bin/ar71xx/openwrt-ar71xx-generic-tl-wr841n-v9-squashfs-*.bin ./bin/
 }
 
-board_flash() {
-	echo "nothing implemented"
-}
-
 board_clean() {
 	/bin/rm -rf $target bin/*$machine*
 }