Core/DB: Misc fixes

Source/Game/DataStorage/AreaTriggerDataStorage.cs

@@ -111,7 +111,7 @@ namespace Game.DataStorage
                 Log.outInfo(LogFilter.ServerLoading, "Loaded 0 AreaTrigger templates splines. DB table `spell_areatrigger_splines` is empty.");
             }
 
-            //                                                      0   1     2      3      4      5      6      7      8      9
+            //                                            0   1     2      3      4      5      6      7      8      9
             SQLResult templates = DB.World.Query("SELECT Id, Type, Flags, Data0, Data1, Data2, Data3, Data4, Data5, ScriptName FROM `areatrigger_template`");
             if (!templates.IsEmpty())
             {

Source/Game/Entities/Unit/Unit.Fields.cs

@@ -132,9 +132,8 @@ namespace Game.Entities
         ushort _meleeAnimKitId;
     }
 
-    public class DiminishingReturn
+    public struct DiminishingReturn
     {
-        public DiminishingReturn() { }
         public DiminishingReturn(uint hitTime, DiminishingLevels hitCount)
         {
             Stack = 0;

Source/Game/Entities/Unit/Unit.Spells.cs

@@ -2649,9 +2649,6 @@ namespace Game.Entities
         public DiminishingLevels GetDiminishing(DiminishingGroup group)
         {
             DiminishingReturn diminish = m_Diminishing[(int)group];
-            if (diminish == null)
-                return DiminishingLevels.Level1;
-
             if (diminish.HitCount == 0)
                 return DiminishingLevels.Level1;
 
@@ -2778,8 +2775,6 @@ namespace Game.Entities
         {
             // Checking for existing in the table
             DiminishingReturn diminish = m_Diminishing[(int)group];
-            if (diminish == null)
-                diminish = new DiminishingReturn();
 
             if (apply)
                 ++diminish.Stack;