syntax errors

configuration.nix

@@ -14,8 +14,6 @@
   };
   networking.hostName = "nixbox"; # Define your hostname.
 
-  networking.hostName = "multiuser-server-example";
-
   # Set your time zone.
   time.timeZone = "US/Eastern";
 

users.nix

@@ -4,7 +4,6 @@ let
 in
 {
   imports = [
-    #(import "${home-manager}/nixos")
   ];
 
   users.users = 
@@ -30,5 +29,5 @@ in
     owner = server_manager "junikim" "1234";
     a = server_user "a" "1234";
     b = server_user "b" "1234";
-  }
+  };
 }