fix build

data/sql/db-world/base/1v1_Battlemaster.sql

@@ -1,6 +1,6 @@
 DELETE FROM `creature_template` WHERE `entry`=999991;
 INSERT INTO `creature_template` (`entry`, `difficulty_entry_1`, `difficulty_entry_2`, `difficulty_entry_3`, `KillCredit1`, `KillCredit2`, `modelid1`, `modelid2`, `modelid3`, `modelid4`, `name`, `subname`, `IconName`, `gossip_menu_id`, `minlevel`, `maxlevel`, `exp`, `faction`, `npcflag`, `speed_walk`, `speed_run`, `scale`, `rank`, `dmgschool`, `DamageModifier`, `BaseAttackTime`, `RangeAttackTime`, `unit_class`, `unit_flags`, `unit_flags2`, `dynamicflags`, `family`, `trainer_type`, `trainer_spell`, `trainer_class`, `trainer_race`, `type`, `type_flags`, `lootid`, `pickpocketloot`, `skinloot`, `PetSpellDataId`, `VehicleId`, `mingold`, `maxgold`, `AIName`, `MovementType`, `HoverHeight`, `HealthModifier`, `ManaModifier`, `ArmorModifier`, `RacialLeader`, `movementId`, `RegenHealth`, `mechanic_immune_mask`, `flags_extra`, `ScriptName`, `VerifiedBuild`) VALUES
-(999991, 0, 0, 0, 0, 0, 23766, 0, 0, 0, 'Arena Battlemaster 1v1', '', '', 8218, 70, 70, 2, 35, 1048577, 1.1, 1.14286, 3, 0, 0, 1, 2000, 2000, 1, 768, 2048, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, '', 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 'npc_1v1arena', 12340);
+(999991, 0, 0, 0, 0, 0, 23766, 0, 0, 0, 'Arena Battlemaster 1v1', '', '', 8218, 70, 70, 2, 35, 1048577, 1.1, 1.14286, 1, 0, 0, 1, 2000, 2000, 1, 768, 2048, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, '', 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 'npc_1v1arena', 12340);
 
 DELETE FROM `battlemaster_entry` WHERE `entry`=999991;
 INSERT INTO `battlemaster_entry` (`entry`, `bg_template`) VALUES (999991, 6);

src/npc_arena1v1.cpp

@@ -279,7 +279,6 @@ class npc_1v1arena : public CreatureScript
         if (sConfigMgr->GetOption<uint32>("Arena1v1.MinLevel", 80) > player->getLevel())
             return false;
 
-        uint8 arenaslot = ArenaTeam::GetSlotByType(ARENA_TEAM_1V1);
         uint8 arenatype = ARENA_TYPE_1V1;
         uint32 arenaRating = 0;
         uint32 matchmakerRating = 0;