To get rid of it
Examples
You've got the brain of a four-year-old boy, and I bet he was glad to get rid of it.
I was very much into buying contemporary art, but I've just decided I want to get rid of it all. Not that it's not great art, but all of a sudden my mood has changed, and I want to go back to seventeenth- and eighteenth-century masters.
Often, the less there is to justify a traditional custom, the harder it is to get rid of it.
In literature the ambition of the novice is to acquire the literary language; the struggle of the adept is to get rid of it.
Learn just enough of the subject [metaphysics] to enable your mind to get rid of it.
Democracy is a problem and we don't want to get rid of it.