Revert "OBT1.1.0 Merge branch 'dev_pte' into dev"

This reverts commit 177cf89756, reversing
changes made to 42ba733cd4.

Barotrauma/BarotraumaShared/SharedSource/Map/Explosion.cs

@@ -7,7 +7,6 @@ using Microsoft.Xna.Framework;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading;
 
 namespace Barotrauma
 {
@@ -649,11 +648,7 @@ namespace Barotrauma
             }
         }
 
-        // ThreadLocal for thread-safe structure damage tracking
-        private static readonly ThreadLocal<Dictionary<Structure, float>> damagedStructuresLocal = 
-            new ThreadLocal<Dictionary<Structure, float>>(() => new Dictionary<Structure, float>());
-        private static Dictionary<Structure, float> damagedStructures => damagedStructuresLocal.Value;
-        
+        private static readonly Dictionary<Structure, float> damagedStructures = new Dictionary<Structure, float>();
         /// <summary>
         /// Returns a dictionary where the keys are the structures that took damage and the values are the amount of damage taken
         /// </summary>