Remove the attached configurations because it is not needed.

common/src/main/java/net/neoforged/gradle/common/runs/run/DependencyHandlerImpl.java

@@ -25,7 +25,7 @@ public Project getProject() {
     }
 
     public Configuration getConfiguration() {
-        final Configuration configuration = ConfigurationUtils.temporaryAttachedConfiguration(project);
+        final Configuration configuration = ConfigurationUtils.temporaryConfiguration(project);
         configuration.fromDependencyCollector(this.getRuntime());
         return configuration;
     }

dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/util/ConfigurationUtils.groovy

@@ -23,29 +23,6 @@ class ConfigurationUtils {
         throw new IllegalStateException("Can not instantiate an instance of: ConfigurationUtils. This is a utility class")
     }
 
-    /**
-     * Creates an attached configuration that can be resolved, but not consumed.
-     *
-     * @param project The project to create the configuration for
-     * @param dependencies The dependencies to add to the configuration
-     * @return The detached configuration
-     */
-    static Configuration temporaryAttachedConfiguration(final Project project, final Dependency... dependencies) {
-        final Configuration configuration = project.getConfigurations().create("ng_do_not_use_this_configuration_${temporaryConfigurationCounter.incrementAndGet()}", new Action<Configuration>() {
-            @Override
-            void execute(Configuration files) {
-                files.setCanBeConsumed(false)
-                files.setCanBeResolved(true)
-                files.getDependencies().addAll(dependencies)
-
-                final DependencyReplacement dependencyReplacement = project.getExtensions().getByType(DependencyReplacement.class)
-                dependencyReplacement.handleConfiguration(files)
-            }
-        });
-
-        return configuration
-    }
-
     /**
      * Creates a detached configuration that can be resolved, but not consumed.
      *