Revert "make sure we show display names & avatars on parts, and use the right…"

lib/models/event.js

@@ -143,8 +143,6 @@ module.exports.MatrixEvent.prototype = {
     /**
      * Get either 'content' or 'prev_content' depending on if this event is
      * 'forward-looking' or not. This can be modified via event.forwardLooking.
-     * In practice, this means we get the chronologically earlier content value
-     * for this event (this method should surely be called getEarlierContent)
      * <strong>This method is experimental and may change.</strong>
      * @return {Object} event.content if this event is forward-looking, else
      * event.prev_content.