title: Why use removeEventListener vs just deleting it?
body: <p>I'm learning JavaScript and the methods to interact with the DOM.</p>
  <p>I got to event listeners and saw that there is a <code>removeEventListener()</code> method.</p>
  <p>I understood how to use it but was curious as to why we don't just delete the line of code with the event listener we don't want? Is there a reason as to why it is better to use the remove method over just removing ourselves?</p>
  <p>Any clarification on this would be helpful :)</p>
  <p>Thanks</p>