Remove note in [thread.req.paramname]

d0355r3.html

@@ -9978,8 +9978,6 @@ requirements. If a template parameter is named <code>Predicate</code>,
 convertible to <code>bool</code>.  <ins>A program that instantiates a template with a
 template parameter named <code>Clock</code> with a type for which
 <code>chrono::is_clock&lt;Clock&gt;::value</code> is <code>false</code>, is ill-formed.
-[<i>Note:</i> For example, use of <code>local_time</code> with <code>sleep_until</code>
-will result in a diagnostic. &mdash; <i>end note</i>]</ins>
 </p>
 </blockquote>