Remove resource leak detection level setting

proxy/src/main/java/com/velocitypowered/proxy/Velocity.java

@@ -1,7 +1,5 @@
 package com.velocitypowered.proxy;
 
-import io.netty.util.ResourceLeakDetector;
-import io.netty.util.ResourceLeakDetector.Level;
 import java.text.DecimalFormat;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -37,8 +35,6 @@ public class Velocity {
       return;
     }
 
-    ResourceLeakDetector.setLevel(Level.PARANOID);
-
     long startTime = System.currentTimeMillis();
 
     VelocityServer server = new VelocityServer(options);