BETA: Removed BUFF skillType.

Patch by: Nos, Adry_85
Reviewed by: Zoey76, !UnAfraid

git-svn-id: http://svn.l2jdp.com/branches/unstable/L2J_DataPack_BETA@10006 5288da4f-0efc-0310-bd40-8d490a2659fa