So I'm wiping a MBP getting it ready to sell. ran the terminal command diskutil list and there are 20 partitions there! This machine is on High Sierra with APFs system. There are disks 0, 1, & 2 which all realte to the system and thats fine. but there are 17 more small partitions (512Kb to 6.3Mb in size and I have no clue what they are about. Are these important or can I wipe and merge them ?