Revert "base-files: rename hostname with EUI of mac address"

This reverts commit 6170c46b47.

There has been demand for further evaluation of the impact of a
changed hostname, so this is reverted for now. The default hostname
will be "OpenWrt" again after this commit.

The macaddr_geteui() function is not removed by this revert.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

package/base-files/files/bin/config_generate

@@ -3,7 +3,6 @@
 CFG=/etc/board.json
 
 . /usr/share/libubox/jshn.sh
-. /lib/functions/system.sh
 
 [ -s $CFG ] || /bin/board_detect || exit 1
 [ -s /etc/config/network -a -s /etc/config/system ] && exit 0
@@ -254,22 +253,9 @@ generate_static_system() {
 		add_list system.ntp.server='3.openwrt.pool.ntp.org'
 	EOF
 
-	local label_macaddr=$(get_mac_label_dt)
-	local hostname
-
-	if json_is_a system object; then
-		json_select system
-			[ -n "$label_macaddr" ] || json_get_var label_macaddr label_macaddr
-		json_select ..
-	fi
-
-	if [ -n "$label_macaddr" ]; then
-		hostname="OpenWrt-$(macaddr_geteui $label_macaddr)"
-		uci -q set "system.@system[-1].hostname=$hostname"
-	fi
-
 	if json_is_a system object; then
 		json_select system
+			local hostname
 			if json_get_var hostname hostname; then
 				uci -q set "system.@system[-1].hostname=$hostname"
 			fi