doc: fix up race detector release note

It's already mentioned under runtime/race, we don't need it
also mentioned under runtime.

Change-Id: I538322b32d75b9642f3ead03539fccb95988ef8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/408875
Reviewed-by: Keith Randall <[email protected]>
Reviewed-by: Carlos Amedee <[email protected]>
Reviewed-by: Rhys Hiltner <[email protected]>

Author: randall77

doc/go1.19.html

@@ -308,16 +308,13 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
       the <code>-trimpath</code> flag set and the <code>GOROOT</code>
       variable is not set in the process environment.
     </p>
-    <p><!-- CL 333529 -->
-      TODO: <a href="https://go.dev/cl/333529">https://go.dev/cl/333529</a>: update runtime (v3)
-    </p>
   </dd>
 </dl><!-- runtime -->
 
-<dl id="runtime/race"><dt><a href="/pkg/runtime/race">runtime/race</a></dt>
+<dl id="runtime/race"><dt><a href="/pkg/runtime/race/">runtime/race</a></dt>
   <dd>
-    <p><!-- https://go.dev/issue/49761 -->
-      The race detector has been updgraded to use thread sanitizer
+    <p><!-- https://go.dev/issue/49761 --><!-- CL 333529 -->
+      The race detector has been upgraded to use thread sanitizer
       version v3.
       <ul>
         <li>