More cleanups of custom classes in favor of .NET runtime types.

Source/Scripts/Spells/Hunter.cs

@@ -17,7 +17,6 @@
 
 using Framework.Constants;
 using Game.Entities;
-using Game.Maps;
 using Game.Scripting;
 using Game.Spells;
 using System;

Source/Scripts/Spells/Items.cs

@@ -16,7 +16,6 @@
  */
 
 using Framework.Constants;
-using Framework.GameMath;
 using Game.BattleGrounds;
 using Game.DataStorage;
 using Game.Entities;
@@ -26,6 +25,7 @@ using Game.Spells;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Numerics;
 
 namespace Scripts.Spells.Items
 {
@@ -2345,7 +2345,7 @@ namespace Scripts.Spells.Items
             {
                 if (target.IsDead() && !target.IsPet())
                 {
-                    GetCaster().SummonGameObject(ObjectIds.ImprisonedDoomguard, target, Quaternion.fromEulerAnglesZYX(target.GetOrientation(), 0.0f, 0.0f), (uint)(target.GetRespawnTime() - GameTime.GetGameTime()));
+                    GetCaster().SummonGameObject(ObjectIds.ImprisonedDoomguard, target, Quaternion.CreateFromRotationMatrix(Extensions.fromEulerAnglesZYX(target.GetOrientation(), 0.0f, 0.0f)), (uint)(target.GetRespawnTime() - GameTime.GetGameTime()));
                     target.DespawnOrUnsummon();
                 }
             }

Source/Scripts/Spells/Priest.cs

@@ -16,7 +16,6 @@
  */
 
 using Framework.Constants;
-using Framework.Dynamic;
 using Game.AI;
 using Game.Entities;
 using Game.Scripting;

Source/Scripts/Spells/Warrior.cs

@@ -16,13 +16,13 @@
  */
 
 using Framework.Constants;
-using Framework.GameMath;
 using Game.Entities;
 using Game.Movement;
 using Game.Scripting;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
+using System.Numerics;
 
 namespace Scripts.Spells.Warrior
 {