Hello
Do you want to remove the boxes they are in ?
If that's the case then wirenut all the ends seperatley tuck them in the box and cover them up
Ok you didn't mention that how many wires in each box ?
Ok then this looks like the circuit ends here
You should be safe just wire nutting all of them off it won't effect anything else
Electrician
former journeyman electrician /maintenance mechanic for 30 years