Remove inclusion of mixins in private-modules as this is also included from composer-packages

private-modules.yml

@@ -45,9 +45,6 @@ include:
       - if: $CI_COMMIT_TAG
         when: never
       - if: $CI_COMMIT_BRANCH == "develop" || $CI_COMMIT_BRANCH =~ "/^feature\/.*/"
-  - project: gitlab-ci-cd/general
-    ref: main
-    file: '/mixins.yml'
   - project: 'gitlab-ci-cd/composer-packages'
     ref: main
     file: '/composer-packages.yml'