Remove hint.html and index.html

As per discussions on GitHub the index.html and hint.html files should
be deleted in favour of README.md files (from any
.text/.txt/.markdown/.md files which will be turned into README.md in an
upcoming commit).

2015/endoh4/hint.html

@@ -1,74 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<head>
-  <meta name="GENERATOR" content="mkd2html 2.1.5a DL=DISCOUNT">
-  <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
-  <link rel="stylesheet"
-        type="text/css"
-        href="../hint.css">
-  <title>Best One-liner</title>
-</head>
-<body>
-<h1>Best One-liner</h1>
-
-<p>Yusuke Endoh<br>
-<a href="https://github.com/mame/">https://github.com/mame/</a><br>
-Twitter: @mametter</p>
-
-<h2>Judges' comments:</h2>
-
-<h3>To use:</h3>
-
-<pre><code>make
-
-./prog &lt;a number of arguments&gt;
-</code></pre>
-
-<h3>Try:</h3>
-
-<pre><code>./prog @ @ @ @ @ @
-
-./prog @ @ @ @ @ @ @ @ @ @ @ @
-
-./prog $(perl -e 'print "@ " x (2*3*5*7);')
-
-./prog $(&lt; Makefile)
-</code></pre>
-
-<h3>Selected Judges Remarks:</h3>
-
-<p>For this one liner it is best to avoid prime numbers. The output groups
-factors in the x-y dimensions. How many factors can be represented before you
-run out of command line argument space? How could you modify the program to
-experiment with numbers that have more or larger factors?</p>
-
-<h2>Author&rsquo;s comments:</h2>
-
-<p>Visual factorization 1-liner.  Try:</p>
-
-<pre><code>gcc -o prog prog.c
-./prog @
-./prog @ @
-./prog @ @ @
-./prog @ @ @ @
-./prog @ @ @ @ @ @
-./prog @ @ @ @ @ @ @ @
-./prog @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
-</code></pre>
-
-<p>Inspired by <a href="http://www.datapointed.net/visualizations/math/factorization/animated-diagrams/">Animated Factorization Diagrams</a>.</p>
-
-<p>EDIT: <code>prog.orig.c</code> is the original version that I submitted.  Gil Dogon kindly improved it during the review.  Thank you!</p>
-
-<hr />
-
-<TABLE><TR>
-<TD><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a></TD>
-<TD><P>&copy; Copyright 1984-2016, 
-<A HREF="/judges.html">Leo Broukhis, Simon Cooper, Landon Curt Noll</A>
-- All rights reserved<BR>
-This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.</P></TD>
-<TD>&nbsp;<!--<a href="http://validator.w3.org/check?uri=referer"><img src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01 Transitional" height="31" width="88"></a>--></TD>
-</TR></TABLE>
-</body>
-</html>