Removed outdated fixture comment

Author: Brian Vaughn

fixtures/tracing/test.js

@@ -65,8 +65,6 @@ const TestApp = () =>
 
 const PlaceholderText = () => 'Loading ...';
 
-// The more suspending children,
-// The more negative the count will go.
 const SuspendingChild = ({text}) => {
   const resolvedValue = read(text);
   return resolvedValue;
@@ -96,7 +94,6 @@ trace('initial_render', performance.now(), () => {
   const batch = root.createBatch();
   log.app('batch.render()');
   batch.render(createElement(TestApp));
-  // Without batch.then() the interaction count does not go negative.
   batch.then(
     wrap(() => {
       log.app('batch.commit()');