Revert "Add the tool "nixos-typecheck" that can check an option declaration to:"

This reverts commit cad8957eab. It
breaks NixOps, but more importantly, such major changes to the module
system really need to be reviewed.

nixos/modules/services/web-servers/apache-httpd/default.nix

@@ -48,7 +48,8 @@ let
           if svc ? function then svc.function
           else import (toString "${toString ./.}/${if svc ? serviceType then svc.serviceType else svc.serviceName}.nix");
         config = (evalModules
-          { modules = [ { options = res.options; config = svc.config or svc; } ] ++ [ { _module.check = false; } ];
+          { modules = [ { options = res.options; config = svc.config or svc; } ];
+            check = false;
           }).config;
         defaults = {
           extraConfig = "";