PlayStation 4 players have the ability to download and install additional content for their games, such as extra levels, characters, and game modes. Games with multiple DLCs, or “Downloadable Content,” can become cluttered with a variety of content. If you're looking to clean up your game library, deleting add-ons is a simple way to do it. Doing so will remove the content from your console but still keep your saved game data.
Keep in mind that deleting add-ons from the dashboard may not be as effective as they can be reinstalled by accessing the Store app. If you wish to completely remove them, go to the Settings tab in the game's Library page and select the Delete option from the drop-down menu.