Core/Spells: remove duplicated LowerPlayerDamageReq call on reflected spells

- It is already called at Unit::DealDamage

src/server/game/Spells/Spell.cpp

@@ -2362,11 +2362,7 @@ void Spell::DoAllEffectOnTarget(TargetInfo* target)
     else if (missInfo == SPELL_MISS_REFLECT)                // In case spell reflect from target, do all effect on caster (if hit)
     {
         if (target->reflectResult == SPELL_MISS_NONE)       // If reflected spell hit caster -> do all effect on him
-        {
             spellHitTarget = m_caster;
-            if (m_caster->GetTypeId() == TYPEID_UNIT)
-                m_caster->ToCreature()->LowerPlayerDamageReq(target->damage);
-        }
     }
 
     bool enablePvP = false; // need to check PvP state before spell effects, but act on it afterwards