Update course.

Signed-off-by: Willy Sudiarto Raharjo <willysr@gmail.com>

courses.php

@@ -29,7 +29,6 @@ include "includes/navbar.html";
   <ol>
     <li><a href="manpro-ti/index.php">Project Management</a></li>
     <li><a href="kakom-ti/index.php">Computer Security</a></li>
-    <li><a href="kripto-ti/index.php">Cryptography</a></li>
     <li><a href="os-ti/index.php">Operating System</a></li>
   </ol>
 </article>

includes/courses.php

@@ -4,15 +4,13 @@
     <li>|</li>
     <li><a href="../kakom-ti/">CompSec</a></li>
     <li>|</li>
-    <li><a href="../kripto-ti/">Crypto</a></li>
-    <li>|</li>
     <li><a href="../manpro-ti/">Proj Mngmt</a></li>
     <li>|</li>
     <li><a href="../os-ti/">OS</a></li>
   </ul>
 </nav>
 
-<ul id="socialbar">  
-  <li class="facebook"><a href="http://www.facebook.com/willysr">Facebook</a></li>  
-  <li class="twitter"><a href="http://www.twitter.com/willysr2804">Twitter</a></li>    
+<ul id="socialbar">
+  <li class="facebook"><a href="http://www.facebook.com/willysr">Facebook</a></li>
+  <li class="twitter"><a href="http://www.twitter.com/willysr2804">Twitter</a></li>
 </ul>

index.php

@@ -52,7 +52,7 @@ include "includes/quotes.php";
       <h3>My classes next semester</h3>
       <span><time datetime="2016-01-07">July 27, 2015</time></span>
     </header>
-    <p>I will be teaching Computer Security, Cryptography, Operating System, and Project Management.</p>
+    <p>I will be teaching Computer Security, Operating System, and Project Management.</p>
   </article>
   <header>
       <h3>HTML5 and CSS 3 Compliance</h3>