removing control file with timestamp if watchdog is disabled.

ffs-watchdog/files/usr/sbin/ffs-watchdog

@@ -5,9 +5,9 @@ if [ $(ps | grep -c "$ME") -gt 4 ]; then
   exit 1
 fi
 
+FFS=/tmp/.gw.ffs
 if [ "$(uci get gluon-setup-mode.@setup_mode[0].enabled)" = "0" ] &&
    [ "$(uci get system.@system[0].enable_watchdog)" != "0" ]; then
-  FFS=/tmp/.gw.ffs
   NOW=$(date +%s)
   if [ -n "$(batctl gwl | grep '=>')" ]; then
     echo $NOW >$FFS
@@ -25,4 +25,7 @@ if [ "$(uci get gluon-setup-mode.@setup_mode[0].enabled)" = "0" ] &&
       echo $NOW >$FFS
     fi
   fi
+else
+  rm $FFS
+  logger -t $ME "disabled"
 fi