Removed @eventlistener on ExampleSlashCommand

Author: surajkumar

example/echo-bot/src/main/java/com/javadiscord/jdi/example/ExampleSlashCommand.java

@@ -2,10 +2,8 @@
 
 import com.javadiscord.jdi.core.CommandOptionType;
 import com.javadiscord.jdi.core.annotations.CommandOption;
-import com.javadiscord.jdi.core.annotations.EventListener;
 import com.javadiscord.jdi.core.annotations.SlashCommand;
 
-@EventListener
 public class ExampleSlashCommand {
 
     @SlashCommand(