removed some uneeded argument definitions, and updated the readme

src/main.rs

@@ -23,12 +23,6 @@ struct Args {
     #[arg(short, long, help = "start in server mode")]
     server: bool,
 
-    #[arg(short, long, help = "start gui client")]
-    gui: bool,
-
-    #[arg(short, long, help = "for testing stuff...")]
-    test: bool,
-
     #[arg(
         short,
         long,