diff --git a/doc/go1.21.html b/doc/go1.21.html
index 0f13f04b6f..9a159e747d 100644
--- a/doc/go1.21.html
+++ b/doc/go1.21.html
@@ -671,21 +671,9 @@ Do not send CLs removing the interior tags from such phrases.
   </dd>
 </dl><!-- io/fs -->
 
-<dl id="math"><dt><a href="/pkg/math/">math</a></dt>
-  <dd>
-    <p><!-- https://go.dev/issue/56491 -->
-      TODO: <a href="https://go.dev/issue/56491">https://go.dev/issue/56491</a>: add Compare and Compare32
-    </p>
-
-    <p><!-- CL 459435 -->
-      TODO: <a href="https://go.dev/cl/459435">https://go.dev/cl/459435</a>: math: add Compare and Compare32; modified api/next/56491.txt
-    </p>
-
-    <p><!-- CL 467515 -->
-      TODO: <a href="https://go.dev/cl/467515">https://go.dev/cl/467515</a>: math: add Compare and Compare32; modified api/next/56491.txt
-    </p>
-  </dd>
-</dl><!-- math -->
+<!-- https://go.dev/issue/56491 rolled back -->
+<!-- CL 459435 reverted -->
+<!-- CL 467515 reverted -->
 
 <dl id="math/big"><dt><a href="/pkg/math/big/">math/big</a></dt>
   <dd>