doc: update go1.8.html to remove mention of logging of bad requests

TBR=See https://golang.org/cl/33244

Updates #18095

Change-Id: I80f3a0462e6cc431b03927fa919cda4f6eee8d97
Reviewed-on: https://go-review.googlesource.com/33687
Reviewed-by: Brad Fitzpatrick <[email protected]>

Author: bradfitz

doc/go1.8.html

@@ -1173,10 +1173,6 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
         in addition to the previous <code>If-None-Match</code>
         support.
       </li>
-
-      <li> <!-- CL 27950 -->
-        The server now logs bad requests.
-      </li>
     </ul>
 
     <p>