/queue simple 
:foreach i in=[ find ] do={
 :local max [get value-name=max-limit $i]
 :local ip [get value-name=target $i]

:if ($max ="512k/512k") do={
/ip hotspot active
:foreach j in=[ find=~$ip] do={
/ip hotspot active remove $ip;
}
}
}

/queue simple 
:foreach i in=[ find ] do={
 :local max [get value-name=max-limit $i]
 :local ip [:tostr [get value-name=target $i]]
 :local ip2 [:pick $ip 0 [:find $ip "/"]]; 
:if ($max ="1024k/1024k") do={

:foreach j in=[/ip hotspot active find address=$ip2] do= {
        /ip hotspot active remove $j;
   }
}
}
}