Remove outdated comments.

Discussed with:	des
Approved by:	bcr (mentor)

en_US.ISO8859-1/books/developers-handbook/testing/chapter.xml

@@ -430,15 +430,14 @@
       <itemizedlist>
 	<listitem>
 	  <para><literal>HEAD</literal> for amd64, arm, i386,
-	    i386/pc98, ia64, mips, powerpc, powerpc64, and sparc64,
-	    which takes approximately four hours.</para>
+	    i386/pc98, ia64, mips, powerpc, powerpc64, and
+	    sparc64.</para>
 	</listitem>
 	<listitem>
 	  <para><literal>RELENG_9</literal> and supported
 	    9.<replaceable>X</replaceable> branches for amd64, arm,
 	    i386, i386/pc98, ia64, mips, powerpc, powerpc64, and
-	    sparc64, which takes approximately three and a half
-	    hours.</para>
+	    sparc64.</para>
 	</listitem>
       </itemizedlist>
 
@@ -449,8 +448,7 @@
 	<listitem>
 	  <para><literal>RELENG_8</literal> and supported
 	    8.<replaceable>X</replaceable> branches for amd64, i386,
-	    i386/pc98, ia64, mips, powerpc and sparc64, and each
-	    branch takes approximately six hours.</para>
+	    i386/pc98, ia64, mips, powerpc and sparc64.</para>
 	</listitem>
       </itemizedlist>
 
@@ -461,8 +459,7 @@
 	<listitem>
 	  <para><literal>RELENG_7</literal> and supported
 	    7.<replaceable>X</replaceable> branches for amd64, i386,
-	    i386/pc98, ia64, powerpc, and sparc64, and each branch
-	    takes approximately three hours.</para>
+	    i386/pc98, ia64, powerpc, and sparc64.</para>
 	</listitem>
       </itemizedlist>
     </section>
@@ -485,13 +482,6 @@
 	  <para>Apache is set up to use <filename>index.cgi</filename>
 	    as <literal>DirectoryIndex</literal>.</para>
 	</listitem>
-	<listitem>
-	  <para>A <ulink
-	      url="https://www.varnish-cache.org/">Varnish</ulink>
-	    instance in front of Apache ensures that
-	    <filename>index.cgi</filename> does not need to run more
-	    than once every two minutes.</para>
-	</listitem>
       </itemizedlist>
     </section>
   </section>