I need to delete apps that I have previously purchased and deleted from my account history I need to remove some apps from my account history forever because I don't want them anymore, and because iCloud keeps a new history format I need to know the process which is doing this.
I doubt you can. Your account history is on Apple's servers, so you can only read it. I doubt they'd delete anything from there for you just in case you change your mind and want it back. There's certainly nothing on your computer or iOS device that you can tweak to change your history.