Revert "modules: add support for module replacement with disabledModules"

This reverts commit 3f2566689d for now.
Evaluation of the tested job got broken, blocking nixos-unstable.

lib/tests/modules.sh

@@ -99,14 +99,6 @@ checkConfigOutput 'true' "$@" ./define-enable.nix ./define-loaOfSub-if-foo-enabl
 checkConfigOutput 'true' "$@" ./define-enable.nix ./define-loaOfSub-foo-if-enable.nix
 checkConfigOutput 'true' "$@" ./define-enable.nix ./define-loaOfSub-foo-enable-if.nix
 
-# Check disabledModules with config definitions and option declarations.
-set -- config.enable ./define-enable.nix ./declare-enable.nix
-checkConfigOutput "true" "$@"
-checkConfigOutput "false" "$@" ./disable-define-enable.nix
-checkConfigError "The option .*enable.* defined in .* does not exist" "$@" ./disable-declare-enable.nix
-checkConfigError "attribute .*enable.* in selection path .*config.enable.* not found" "$@" ./disable-define-enable.nix ./disable-declare-enable.nix
-checkConfigError "attribute .*enable.* in selection path .*config.enable.* not found" "$@" ./disable-enable-modules.nix
-
 # Check _module.args.
 set -- config.enable ./declare-enable.nix ./define-enable-with-custom-arg.nix
 checkConfigError 'while evaluating the module argument .*custom.* in .*define-enable-with-custom-arg.nix.*:' "$@"

lib/tests/modules/default.nix

@@ -3,6 +3,5 @@
 {
   inherit (lib.evalModules {
     inherit modules;
-    specialArgs.modulesPath = ./.;
   }) config options;
 }

lib/tests/modules/disable-declare-enable.nix

@@ -1,5 +0,0 @@
-{ lib, ... }:
-
-{
-  disabledModules = [ ./declare-enable.nix ];
-}

lib/tests/modules/disable-define-enable.nix

@@ -1,5 +0,0 @@
-{ lib, ... }:
-
-{
-  disabledModules = [ ./define-enable.nix ];
-}

lib/tests/modules/disable-enable-modules.nix

@@ -1,5 +0,0 @@
-{ lib, ... }:
-
-{
-  disabledModules = [ "define-enable.nix" "declare-enable.nix" ];
-}