diff --git a/board/czechlight/common/post_build.sh b/board/czechlight/common/post_build.sh
deleted file mode 100755
index 28a1f8b..0000000
--- a/board/czechlight/common/post_build.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-set -ex
-
-cd ${TARGET_DIR}
-rm -rf etc/network
-rm -f etc/resolv.conf
-rmdir media mnt opt var/www || true
-rm -f var/lib/misc
-rm -rf var/{cache,lock,log,run,spool,tmp}
diff --git a/configs/czechlight_beaglebone_defconfig b/configs/czechlight_beaglebone_defconfig
index 6b9ba38..60b301f 100644
--- a/configs/czechlight_beaglebone_defconfig
+++ b/configs/czechlight_beaglebone_defconfig
@@ -8,7 +8,6 @@
 BR2_TARGET_GENERIC_PASSWD_SHA256=y
 BR2_INIT_SYSTEMD=y
 BR2_TARGET_GENERIC_GETTY_PORT="ttyO0"
-BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/post_build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/post-image.sh"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y