remove Serializable from Packet

Author: jpenilla

API/src/main/java/ninja/egg82/messenger/packets/Packet.java

@@ -3,10 +3,9 @@
 import io.netty.buffer.ByteBuf;
 import org.jetbrains.annotations.NotNull;
 
-import java.io.Serializable;
 import java.util.UUID;
 
-public interface Packet extends Serializable {
+public interface Packet {
     void read(@NotNull ByteBuf buffer);
 
     void write(@NotNull ByteBuf buffer);