Core&Scripts: Fix clang compiler warnings

src/server/scripts/Kalimdor/zone_winterspring.cpp

@@ -158,8 +158,7 @@ public:
     DialogueHelper(DialogueEntry const* dialogueArray) :
       _dialogueArray(dialogueArray),
           _currentEntry(NULL),
-          _actionTimer(0),
-          _isFirstSide(true)
+          _actionTimer(0)
       {}
       // The array MUST be terminated by {0, 0, 0, 0, 0}
 
@@ -237,7 +236,6 @@ private:
     DialogueEntry const* _currentEntry;
 
     uint32 _actionTimer;
-    bool _isFirstSide;
 };
 
 const DialogueEntry introDialogue[] =

src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp

@@ -882,8 +882,6 @@ class npc_halion_controller : public CreatureScript
             InstanceScript* _instance;
             SummonList _summons;
 
-            bool _corporealityCheck;
-
             uint32 _twilightDamageTaken;
             uint32 _materialDamageTaken;
             uint8 _materialCorporealityValue;

src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_anubarak_trial.cpp

@@ -419,8 +419,6 @@ class boss_anubarak_trial : public CreatureScript
                 uint64 _sphereGUID[6];
                 bool _intro;
                 bool _reachedPhase3;
-                uint32 _frostSphereTimer;
-                uint32 _berserkTimer;
         };
 
         CreatureAI* GetAI(Creature* creature) const OVERRIDE
@@ -579,7 +577,6 @@ class npc_nerubian_burrower : public CreatureScript
 
             private:
                 uint32 _submergeTimer;
-                Phases _phase;
                 EventMap _events;
                 InstanceScript* _instance;
         };

src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp

@@ -1135,7 +1135,6 @@ class boss_icehowl : public CreatureScript
                 bool   _movementFinish;
                 bool   _trampleCasted;
                 uint8  _stage;
-                Unit*  _target;
         };
 
         CreatureAI* GetAI(Creature* creature) const OVERRIDE

src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp

@@ -845,7 +845,6 @@ public:
             InstanceScript* instance;
             EventMap events;
             uint64 summonerGuid;
-            float distanceToShade;
             bool startedBanishing;
             bool switchToCombat;
     };

src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp

@@ -186,7 +186,6 @@ class boss_nazan : public CreatureScript
                 uint32 Turn_Timer;
                 bool flight;
                 uint64 VazrudenGUID;
-                SpellInfo* liquid_fire;
         };
 
         CreatureAI* GetAI(Creature* creature) const OVERRIDE