Core/Auras: Undefine aura 320, it is no longer ranged haste

Port From (https://github.com/TrinityCore/TrinityCore/commit/b8153f710e5b47bbd7012858a39bf5db720223bf)

Source/Framework/Constants/Spells/SpellAuraConst.cs

@@ -341,7 +341,7 @@ namespace Framework.Constants
         ModSpellPowerPct = 317,
         Mastery = 318,
         ModMeleeHaste3 = 319,
-        ModRangedHaste2 = 320,
+        Unk320 = 320,
         ModNoActions = 321,
         InterfereTargetting = 322,
         Unk323 = 323,  // Not Used In 4.3.4
@@ -393,7 +393,7 @@ namespace Framework.Constants
         EnablePowerBarTimer = 369,
         SpellOverrideNameGroup = 370, // picks a random SpellOverrideName id from a group (group id in miscValue)
         Unk371 = 371,
-        Unk372 = 372,
+        OverrideMountFromSet = 372, // NYI
         ModSpeedNoControl = 373, // NYI
         ModifyFallDamagePct = 374,
         ModPossessPet = 375,

Source/Game/Spells/Auras/AuraEffect.cs

@@ -3880,7 +3880,6 @@ namespace Game.Spells
         }
 
         [AuraEffectHandler(AuraType.ModRangedHaste)]
-        [AuraEffectHandler(AuraType.ModRangedHaste2)]
         void HandleAuraModRangedHaste(AuraApplication aurApp, AuraEffectHandleModes mode, bool apply)
         {
             if (!mode.HasAnyFlag((AuraEffectHandleModes.ChangeAmountMask | AuraEffectHandleModes.Stat)))