Remove unused code

Teamserver/src/de/steamwar/teamserver/listener/FreezeListener.java

@@ -19,7 +19,6 @@
 
 package de.steamwar.teamserver.listener;
 
-import de.steamwar.core.TrickyTrialsWrapper;
 import de.steamwar.linkage.Linked;
 import de.steamwar.teamserver.Builder;
 import net.md_5.bungee.api.ChatMessageType;
@@ -27,6 +26,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.data.type.Switch;
+import org.bukkit.entity.EntityType;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
@@ -54,7 +54,7 @@ public class FreezeListener implements Listener {
     public void onEntitySpawn(EntitySpawnEvent e) {
         if (!freeze) return;
         e.setCancelled(true);
-        if (e.getEntityType() == TrickyTrialsWrapper.impl.getTntEntityType()) {
+        if (e.getEntityType() == EntityType.TNT) {
             Bukkit.getScheduler().runTaskLater(Builder.getInstance(), () -> {
                 e.getLocation().getBlock().setType(Material.TNT, false);
             }, 1L);