Update boss_kelthuzad.cpp

src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp

@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
- * Copyright (C) 2006-2009 ScriptDev2 <https://scriptdev2.svn.sourceforge.net/>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the