Comment out more duplicate sections

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11422 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter07/usage.xml

@@ -268,7 +268,7 @@ EOF</userinput></screen>
       protocols, filesystems and NLS support on demand.</para>
 
     </sect3>
--->
+
     <sect3>
       <title>Handling Hotpluggable/Dynamic Devices</title>
 
@@ -278,6 +278,7 @@ EOF</userinput></screen>
       <command>udevd</command> as described above.</para>
 
     </sect3>
+-->
   </sect2>
 
   <sect2 id="ch-scripts-clock">