Removed duplicate functions from utils.sh

What does this MR do?

This change was made in EE in MR https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/14802, but this was not backported to CE.

This fixes https://gitlab.com/gitlab-org/gitlab-ee/issues/13336

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content