DB/Creature: Delete spawns of Apexis Guardian

Delete spawns of Apexis Guardian http://www.wowhead.com/npc=22275/apexis-guardian#comments, TC had 12 permament spawns of this NPC when there should be none spawned these are summoned using the large simon clusters at a cost of 35 apexis shards and this is scripted as I have checked and tested this, https://github.com/TrinityCore/TrinityCore/blob/master/src/server/scripts/Outland/zone_blades_edge_mountains.cpp#L998