If you need further custom work, you can deactivate all essential hooks using this code example. The code needs to be placed in a plugin, not in functions.php file from the theme because of hook precedence. The hook is executed very early, on plugins_loaded action.
If the project requires you to place the code in functions.php, you will have to use a different approach to removing hooks. Here’s an example on how to get the component object that you need:
