[wwwdocs] projects/prefetch.html links maintenance

[Gerald Pfeifer]

Now that the server has not been responding for more than two weeks,
likely quite a bit more, I have applied the patch below.

Gerald

Index: prefetch.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/projects/prefetch.html,v
retrieving revision 1.20
diff -u -3 -p -r1.20 prefetch.html
--- prefetch.html	27 Feb 2009 20:46:19 -0000	1.20
+++ prefetch.html	12 Sep 2009 20:07:32 -0000
@@ -757,9 +757,6 @@ see section 2.6.</p>
 
 <p><a name="ref_4">[4]</a>
 <em>AltiVec Technology Programming Environments Manual</em>, 11/1998, Rev. 0.1;
-a 3.2 Mbyte PDF file with a link from
-<a href="http://www.altivec.org/tech_specifications/show_techpdf.cfm">
-http://www.altivec.org/tech_specifications/show_techpdf.cfm</a>.
 Page 5-9 has usage recommendations.</p>
 
 <p><a name="ref_5">[5]</a>