In most countries, homework has come to be an integral part of the schooling system. So much so that parents are suspicious when schools do away with homework.
To do away with something means to remove it completely or put an end to it. The long-range goal must be to do away with nuclear weapons altogether
If one person does away with another, the first murders the second. If you do away with yourself, you kill yourself. a woman whose husband had made several attempts to do away with her