[install-guide/f21-branch] Removing references to ARM from Book_Info until we can actually get some documentation for it

[pbokoc]

commit 36931b3f92060964c19fba7afbed17df40e84466
Author: Petr Bokoc <pbokoc at redhat.com>
Date:   Tue Dec 9 18:38:30 2014 +0100

    Removing references to ARM from Book_Info until we can actually get some documentation for it

 en-US/Book_Info.xml |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/en-US/Book_Info.xml b/en-US/Book_Info.xml
index cf7cfc8..e3b3b60 100644
--- a/en-US/Book_Info.xml
+++ b/en-US/Book_Info.xml
@@ -5,14 +5,14 @@
 ]>
 <bookinfo id="Installation_Guide">
     <title>Installation Guide</title>
-    <subtitle>Installing &PRODUCT;&nbsp;&PRODVER; on 32 and 64-bit Intel-compatible systems and ARM systems</subtitle>
+    <subtitle>Installing &PRODUCT;&nbsp;&PRODVER; on 32 and 64-bit AMD and Intel</subtitle>
     <productname>Fedora</productname>
     <productnumber>21</productnumber>
     <edition>1</edition>
     <pubsnumber>0</pubsnumber>
     <abstract>
         <para>
-            This manual explains how to boot the Fedora installation program, <application>Anaconda</application>, and how to install Fedora&nbsp;&PRODVER; on 32 and 64-bit AMD and Intel systems and on ARM systems. It also covers advanced installation methods such as automated Kickstart installations, booting the installation from a network location, remote access to the installation system using VNC, and system upgrades from previous versions of Fedora. It also describes common post-installation tasks and explains how to troubleshoot common issues related to the installation.
+            This manual explains how to boot the Fedora installation program, <application>Anaconda</application>, and how to install Fedora&nbsp;&PRODVER; on 32 and 64-bit AMD and Intel systems. It also covers advanced installation methods such as automated Kickstart installations, booting the installation from a network location, remote access to the installation system using VNC, and system upgrades from previous versions of Fedora. It also describes common post-installation tasks and explains how to troubleshoot common issues related to the installation.
         </para>
     </abstract>
     <corpauthor>