Remove parameter from "Report long tasks" call

This change aligns the HTML calls to "Report long tasks" with the recent
change to Long Tasks in w3c/longtasks#50.

source

@@ -89176,8 +89176,8 @@ dictionary <dfn>PromiseRejectionEventInit</dfn> : <span>EventInit</span> {
      <li><p>If <span>event loop end</span> is set, then let <var>top-level browsing contexts</var>
      be the set of all <span data-x="top-level browsing context">top-level browsing contexts</span>
      of all <code>Document</code> objects associated with the <span>event loop</span>. <span>Report
-     long tasks</span>, passing in <span>event loop end</span>, <span>event loop begin</span>,
-     "<code data-x="">browser</code>", and <var>top-level browsing contexts</var>.</p></li>
+     long tasks</span>, passing in <span>event loop end</span>, <span>event loop begin</span>, and
+     <var>top-level browsing contexts</var>.</p></li>
     </ol>
   </li>
 
@@ -89209,9 +89209,8 @@ dictionary <dfn>PromiseRejectionEventInit</dfn> : <span>EventInit</span> {
      to <var>top-level browsing contexts</var>.</p></li>
 
      <li><p><span>Report long tasks</span>, passing in <span>event loop begin</span> (repurposed as
-     meaning the beginning of the task), <var>now</var> (the end time of the task), "<code
-     data-x="">event-loop-task</code>", <var>top-level browsing contexts</var>, and
-     <var>oldestTask</var>.</p></li>
+     meaning the beginning of the task), <var>now</var> (the end time of the task),
+     <var>top-level browsing contexts</var>, and <var>oldestTask</var>.</p></li>
     </ol>
    </li>
 
@@ -89364,8 +89363,8 @@ dictionary <dfn>PromiseRejectionEventInit</dfn> : <span>EventInit</span> {
      <code>Document</code>s in <var>docs</var>.</p></li>
 
      <li><p><span>Report long tasks</span>, passing in <var>now</var> (repurposed as meaning the
-     beginning of the <span>update the rendering</span> step), <var>rendering end time</var>, "<code
-     data-x="">rendering</code>", and <var>top-level browsing contexts</var>.</p></li>
+     beginning of the <span>update the rendering</span> step), <var>rendering end time</var>, and
+     <var>top-level browsing contexts</var>.</p></li>
     </ol>
    </li>