removes redundant println!() from example

README.md

@@ -14,8 +14,6 @@ New-EventLog -LogName Application -Source hello_world
 use tracing_subscriber::{layer::SubscriberExt as _, util::SubscriberInitExt as _};
 
 fn main() {
-    println!("Hello, world!");
-
     let eventlog = tracing_layer_win_eventlog::EventLogLayer::new("hello_world".to_owned());
 
     tracing_subscriber::registry()