[www] remove broken links from projects/prefetch.html

[Janis Johnson <janis187 at us dot ibm dot com>]

Gerald reported several broken links in the "Data Prefetch Support"
projects page, so I've removed those links with this patch.  I'll leave
searching for the current location of each document (if they're still
out there somewhere) to the next person who actually wants to read it.

Janis

Index: projects/prefetch.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/projects/prefetch.html,v
retrieving revision 1.9
diff -u -r1.9 prefetch.html
--- projects/prefetch.html	17 Apr 2003 17:35:17 -0000	1.9
+++ projects/prefetch.html	3 Jun 2003 22:03:34 -0000
@@ -748,16 +748,11 @@
 
 <p><a name="ref_2">[2]</a>
 <em>Alpha Architecture Handbook</em>, Compaq, Version 4, October 1998,
-Order Number EC-QD2KC-TE; a PDF file at
-<a href="http://www.support.compaq.com/alpha-tools/documentation/current/alpha-archt/alpha-architecture.pdf";>
-http://www.support.compaq.com/alpha-tools/documentation/current/alpha-archt/alpha-architecture.pdf</a>
+Order Number EC-QD2KC-TE;
 see pages 4-139 and A-8.</p>
 
 <p><a name="ref_3">[3]</a>
-<em>Alpha 21264 Hardware Reference Manual</em>, July 1999,
-a PDF file with a link from
-<a href="http://www.support.compaq.com/alpha-tools/documentation/current/chip-docs.html";>
-http://www.support.compaq.com/alpha-tools/documentation/current/chip-docs.html</a>;
+<em>Alpha 21264 Hardware Reference Manual</em>, July 1999;
 see section 2.6.</p>
 
 <p><a name="ref_4">[4]</a>
@@ -818,9 +813,7 @@
 http://www-cs-faculty.stanford.edu/~knuth/fasc1.ps.gz</a>.</p>
 
 <p><a name="ref_13">[13]</a>
-<em>PA-RISC 2.0 Instruction Set Architecture</em>,
-<a href="http://dsportal.eservices.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959,00.html";>
-http://dsportal.eservices.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959,00.html";</a>;
+<em>PA-RISC 2.0 Instruction Set Architecture</em>;
 see <em>Memory Reference Instructions</em> in Chapter 6.</p>
 
 <p><a name="ref_14">[14]</a>
@@ -837,10 +830,7 @@
 
 <p><a name="ref_16">[16]</a>
 <em>SuperH[tm] RISC Engine SH-3/SH-3E/SH3-DSP Programming Manual</em>,
-ADE-602-096B, Rev. 3.0, 9/25/00, Hitachi, Ltd.;
-a PDF file with a link from
-<a href="http://www.hitachisemiconductor.com/sic/jsp/japan/eng/products/mpumcu/32bit/superh.html";>
-http://www.hitachisemiconductor.com/sic/jsp/japan/eng/products/mpumcu/32bit/superh.html</a>.</p>
+ADE-602-096B, Rev. 3.0, 9/25/00, Hitachi, Ltd.</p>
 
 <p><a name="ref_17">[17]</a>
 <em>SuperH[tm] RISC Engine SH-4 Programming Manual</em>,
@@ -878,9 +868,7 @@
 
 <p><a name="ref_21b">[21b]</a>
 <em>Compiler Writer's Guide for the 21264/21364</em>,
-Order Number EC-0100A-TE, January 2002;
-<a href="http://www.support.compaq.com/alpha-tools/documentation/current/21364/comp_guide_v2.pdf";>
-http://www.support.compaq.com/alpha-tools/documentation/current/21364/comp_guide_v2.pdf</a>.</p>
+Order Number EC-0100A-TE, January 2002.</p>
 
 <p><a name="ref_22">[22]</a>
 <em>Compiler-Based Prefetching for Recursive Data Structures</em>,
@@ -900,9 +888,7 @@
 
 <p><a name="ref_24">[24]</a>
 <em>Optimizing 3DNow! Real-Time Graphics</em>, Dr. Dobb's Journal August 2000,
-Max I. Fomitchev;
-<a href="http://www.ddj.com/articles/2000/0008/0008c/0008c.htm?topic=graphics";>
-http://www.ddj.com/articles/2000/0008/0008c/0008c.htm?topic=graphics</a>.</p>
+Max I. Fomitchev.</p>
 
 <p><a name="ref_25">[25]</a>
 <em>An Overview of the Intel IA-64 Compiler</em>,