Remove feedback link in discover security point

What does this MR do and why?

Remove feedback link in discover security point

Related to #348849 (closed)

Screenshots or screen recordings

How to set up and validate locally

1. Enable a gitlab.com environment
2. Change "check_namespace_plan" application settings to true http://gdk.test:3000/admin/application_settings/general ( Check feature availability on namespace plan )
3. Create a group MYGROUP
4. Go to http://gdk.test:3000/groups/MYGROUP/-/security/discover

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.