Fixed build and removed an unused variable

src/server/game/Battlegrounds/Battleground.cpp

@@ -850,12 +850,8 @@ void Battleground::EndBattleground(uint32 winner)
             if (team == winner)
             {
                 // update achievement BEFORE personal rating update
-                if (ArenaTeamMember* member = winner_arena_team->GetMember(player->GetGUID()))
-                {
                 uint32 rating = player->GetArenaPersonalRating(winner_arena_team->GetSlot());
-                    player->GetAchievementMgr().UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_WIN_RATED_ARENA,
-                        rating ? rating : 1);
-                }
+                player->GetAchievementMgr().UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_WIN_RATED_ARENA, rating ? rating : 1);
 
                 winner_arena_team->MemberWon(player, loser_matchmaker_rating, winner_matchmaker_change);
             }

src/server/game/Server/Protocol/PacketLog.h

@@ -27,6 +27,8 @@ enum Direction
     SERVER_TO_CLIENT
 };
 
+class WorldPacket;
+
 class PacketLog
 {
     friend class ACE_Singleton<PacketLog, ACE_Thread_Mutex>;