Oops. Remove mention of LASH (tsk, tsk) from overview.

doc/OVERVIEW.html

@@ -68,10 +68,6 @@ The following libraries are required to build Non.
 <ul><li><span>FLTK >= 1.1.7 (with `fluid`)</span>
 <li><span>JACK >= 0.103.0</span>
 <li><span>sigc++ 2.0</span>
-</ul><p>
-The following are optional:
-</p>
-<ul><li><span>LASH >= 0.5.4</span>
 </ul><h1 id="u:7.">Community</h1>
 <p>
 Feel free to drop by the <tt>#non</tt> channel on irc.freenode.net.

doc/OVERVIEW.mu

@@ -78,10 +78,6 @@
 * JACK >= 0.103.0
 * sigc++ 2.0
 
-  The following are optional:
-
-* LASH >= 0.5.4
-
 ; Community
 
   Feel free to drop by the `#non` channel on irc.freenode.net.