ashjamise Your packs/DLC are owned by your account, not your computer. So you can install the game and the content you've bought as many times as you want, on as many computers as you want.
The Electronic Arts folder in Documents contains the Sims 4 folder that contains saves and other user files. So if you don't care about any of that, go ahead and delete it. You could instead put it aside though—the game won't read the contents if the folder is anywhere else, or if it has a different name.
If you mean a different EA folder, please list the one you're talking about as well as its location.