remove unnecessary license whitelisting

home/config.nix

@@ -4,9 +4,9 @@ let
 in
   {
 
+    allowUnfree = true;
     firefox.enablePlasmaBrowserIntegration = true;
     clementine.spotify = false;
-    whitelistedLicenses = with lib.licenses; [ wtfpl ];
     vim =
       { gui = "gtk3";
       python = true;