Oh good God, thank you for that.
In case anyone is in the same boat I was, here’s a walkthrough:
Go to your project folder, i.e. "C:\Users\Documents\Unreal Projects\YourGame\ and right click on “YourGame.uproject.” Open With Notepad. Inside the file you’ll see plugins listed in braces and separated by commas. Just delete the entry in braces you want to disable and the comma after it. Don’t delete any square brackets or other pieces, just the braces, the comma, and the plugin information inside the braces.