Remove d-md-none/d-sm-none when d-sm-none/d-none exists from Admin Abuse Reports

What does this MR do?

Removes Bootstrap display properties from Admin Abuse Reports' HAML files.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [n/a] Documentation (if required)
• Code review guidelines
• [n/a] Merge request performance guidelines
• Style guides
• [n/a] Database guides
• Separation of EE specific content

Related to #264790 (closed)