Cleanup after the --disable-libmpx instruction removal in GCC. This required changes to GCC Pass 1 (CH5) and the main GCC page (CH6)

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11600 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter05/gcc-pass1.xml

@@ -206,12 +206,12 @@ cd       build</userinput></screen>
 
       <varlistentry>
         <term><parameter>--disable-decimal-float, --disable-threads,
-        --disable-libatomic, --disable-libgomp, --disable-libmpx,
+              --disable-libatomic, --disable-libgomp, <!--- -disable-libmpx,-->
         --disable-libquadmath, --disable-libssp, --disable-libvtv,
         --disable-libstdcxx</parameter></term>
         <listitem>
           <para>These switches disable support for the decimal floating point
-          extension, threading, libatomic, libgomp, libmpx, libquadmath, libssp,
+          extension, threading, libatomic, libgomp, <!--libmpx, --> libquadmath, libssp,
           libvtv, and the C++ standard library respectively. These features
           will fail to compile when building a cross-compiler and are not
           necessary for the task of cross-compiling the temporary libc.</para>

chapter06/gcc.xml

@@ -80,16 +80,16 @@ cd       build</userinput></screen>
           path to /tools/bin/sed.</para>
         </listitem>
       </varlistentry>
- 
+      <!-- 
       <varlistentry>
-        <term><parameter>--disable-libmpx</parameter></term>
+        <term><parameter>- -disable-libmpx</parameter></term>
         <listitem>
           <para>This switch tells GCC to not build mpx (Memory Protection
           Extensions) that can cause problems on some processors. It has
           been removed from the next version of gcc.</para>
         </listitem>
       </varlistentry>
-
+      -->
       <varlistentry>
         <term><parameter>--with-system-zlib</parameter></term>
         <listitem>