activeChar.sendPacket(SystemMessageId.WELCOME_TO_LINEAGE); - activeChar.sendMessage(getText("VGhpcyBTZXJ2ZXIgdXNlcyBMMkosIGEgUHJvamVjdCBmb3VuZGVkIGJ5IEwyQ2hlZg==" + Config.EOL)); - activeChar.sendMessage(getText("YW5kIGRldmVsb3BlZCBieSB0aGUgTDJKIERldiBUZWFtIGF0IHd3dy5sMmpzZXJ2ZXIuY29t" + Config.EOL));
correct me if i am wrong but on http://svn.l2jserver.com/trunk/L2J_Server/java/com/l2jserver/gameserver/network/clientpackets/EnterWorld.java remove those 2 lines
edit: i suggest you not to remove them since its free they do the best for you to create a server, they at least deserve their credits