Remove temporary util classes that has been added to gitlab-ui

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With this MR being merged > gitlab-ui!2608 (merged). Please remove the temporary classes that were created:

• https://gitlab.com/gitlab-org/gitlab/blob/296ece0663209ce998250fbab500d6a0df5e8c49/app/assets/stylesheets/pages/projects.scss#L1031
• https://gitlab.com/gitlab-org/gitlab/blob/66b9aa80740ee1c75619a2b834632dbb4b95cb88/app/assets/stylesheets/utilities.scss#L120

This issue is a follow up to:

• gitlab-ui#1168 (closed)

TODO

Please also ensure the styling work as expected to the feature that was introduced in this MR.

!52967 (merged)