Remove 2024/ferguson2/prog.[23].c

These should really not be useful or interesting. They are not as they
were described either - they were initial tests and have no value now.

2024/ferguson2/index.html

@@ -1880,8 +1880,6 @@ figured I’d save a file.</p>
 <li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/sam.jpg">sam.jpg</a> - medical record card for Unsinkable Sam</li>
 <li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/try.sh">try.sh</a> - script to try entry</li>
 <li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/dict.orig">dict.orig</a> - code talker dictionary in original form</li>
-<li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/prog.2.c">prog.2.c</a> - older version 2 of the code</li>
-<li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/prog.3.c">prog.3.c</a> - older version 3 of the code</li>
 <li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/prog.obfus.c">prog.obfus.c</a> - intermedate code obfuscation</li>
 <li><a href="https://github.com/ioccc-src/winner/blob/master/2024/ferguson2/prog.pre-format.c">prog.pre-format.c</a> - 2023 Mar 8 version of prog.c</li>
 </ul>