Remove issue note from vulnerability details

What does this MR do?

Clicking on an issue in the security dashboard will show the vulnerability details page. On that page, there is a Create Issue button in the Related Issues header:

After clicking this button, a related issue is automatically created. This issue is locked and cannot be removed:

However, another panel is shown above it that displays the same issue. As per this design, we need to remove this panel because it displays the same issue as the one in the related issues list, and is redundant.

Before	After

Does this MR meet the acceptance criteria?

Conformity

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

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done