WIP Keyboard events on text inputs: remove redundent element path code

Originally was getting the HTML element in question from the event path
but any events fired on this component are for this text area so there's
no need to use it.

If for any reason events fire here that are not ment for the textarea
then can introduce it back in for disambiguation.

src/sidebar-overlay/comment-box/components/comment-box-form.tsx

@@ -339,10 +339,6 @@ class TextArea extends React.Component<
 
  // If the input event matches a control character we know how to handle, then handle it manually
  private handleControlEvent(e: ReTargetedTextElementEvent) {
- // Get the virtual target element this event was intended for, not the 'targetElement' that comes from the event
- // that is actually the shadow dom root container.
- const el = e.path[0]
-
  switch (e.key) {
  case 'Enter':
  this.handleInput('\n')
@@ -362,10 +358,10 @@ class TextArea extends React.Component<
  // moveSelectionUp(el);
  return true
  case 'End':
- this.jumpSelection(el.value.length)
+ this.jumpSelection(this.textarea.value.length)
  return true
  case 'PageDown':
- this.jumpSelection(el.value.length)
+ this.jumpSelection(this.textarea.value.length)
  return true
  case 'Home':
  this.jumpSelection(0)