Clean chapter 8 binutils xml and text

Remove old commented instructions
Remove a sed and a test failure explanation: both have been fixed
in binutils-2.39

chapter08/binutils.xml

@@ -56,29 +56,14 @@
 
 <screen><computeroutput>The system has no more ptys.
 Ask your system administrator to create more.</computeroutput></screen>
-<!--
-    <para>Upstream has made a patch to fix a problem when using binutils
-    for building some BLFS packages with Link Time Optimization (LTO)
-    enabled.  Apply that now:</para>
-
- <screen><userinput remap="pre">patch -Np1 -i ../&binutils-lto-patch;</userinput></screen>
--->
-<!--
-    <para>An error in the building system causes the shipped man pages to
-    be empty.  Workaround the issue and remove the shipped man pages, so the
-    man pages will be regenerated correctly:</para>
-
-<screen><userinput remap="pre">sed -i '63d' etc/texi2pod.pl
-find -name \*.1 -delete</userinput></screen>
--->
-
+<!-- Fixed in binutils-2.39
     <para>
       Now make a fix identified upstream that affects building some packages:
      </para>
 
 <screen><userinput remap="pre">sed -e '/R_386_TLS_LE /i \   || (TYPE) == R_386_TLS_IE \\' \
     -i ./bfd/elfxx-x86.h</userinput></screen>
-
+-->
     <para>The Binutils documentation recommends building Binutils
     in a dedicated build directory:</para>
 
@@ -175,12 +160,12 @@ cd       build</userinput></screen>
 
 <screen><userinput remap="test">make -k check</userinput></screen>
 
-    <!-- Will be fixed in 2.39
-         https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=01ae03b -->
+    <!-- Fixed in 2.39
+         https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=01ae03b
     <para>One gold test, <filename>pr17704a_test</filename>, is known to
     fail if <parameter>CONFIG_IA32_EMULATION</parameter> is disabled in the
     kernel configuration of the host system.</para>
-
+ -->
     <para>Install the package:</para>
 
 <screen><userinput remap="install">make tooldir=/usr install</userinput></screen>