Disable Techhider on Version != 1.12

FightSystem_Main/src/de/steamwar/fightsystem/utils/TechHider.java

@@ -104,7 +104,7 @@ public class TechHider {
             return;
         running = true;
 
-        if(disabled())
+        if(disabled() || Core.getVersion() != 12)
             return;
 
         Bukkit.getScheduler().runTaskTimer(FightSystem.getPlugin(), packetCache::clear, 1, 1);