Remove the following from your account using JavaScript and your browser console.

github-unfollow-the-following.md

This script to unfollow the following on your Github account automatically.

[].slice.call(document.querySelectorAll('.js-toggler-target')).forEach(function(button) {
   var x = button.parentNode.getAttribute("action")
	 if(x.indexOf("/users/unfollow") > -1){console.log(x);button.click();}
});