Removed useless instruction

.gitlab-ci.yml

@@ -57,7 +57,6 @@ create-release:
     - if: '$CI_COMMIT_TAG'
   script:
     - echo "Creating release…"
-    - sha256sum dist/${WHEEL_NAME} > dist/${WHEEL_NAME}.sha256
     - |
       release-cli create --name "updates-notifier $CI_COMMIT_TAG release" \
       --description "Auto-generated release." --tag-name "$CI_COMMIT_TAG" \