monitor: remove some old garbage and simplify code
monitor: remove some old garbage and simplify code

kArTeL/mirrorbits,Myself5/mirrorbits,wsnipex/mirrorbits,kib/mirrorbits,etix/mirrorbits,kArTeL/mirrorbits,Myself5/mirrorbits,kib/mirrorbits,wsnipex/mirrorbits,etix/mirrorbits,etix/mirrorbits,kib/mirrorbits,Myself5/mirrorbits,wsnipex/mirrorbits,kArTeL/mirrorbits