Clean up examples

examples/hello-world/main.nub

@@ -2,33 +2,8 @@ module "main"
 
 extern "puts" func puts(text: cstring)
 
-struct Human
-{
-    name: cstring
-
-    func print()
-    {
-        puts("human")
-    }
-}
-
 extern "main" func main(args: []cstring): i64
 {
     puts("test")
-    let test: Human = {
-        name = "uwu"
-    } 
-
-    if false
-    {
-        puts("uwu")
-    }
-
-    while true
-    {
-        puts("count")
-    }
-
-    test.print()
     return 0
 }