Simplify Feature Proposal template

.gitlab/issue_templates/Feature Proposal.md

-Please read this!
-
-Before opening a new issue, make sure to search for keywords in the issues
-filtered by the "feature proposal" label:
-
-For the Community Edition issue tracker:
-
-- https://gitlab.com/gitlab-org/gitlab-ce/issues?label_name%5B%5D=feature+proposal
-
-For the Enterprise Edition issue tracker:
-
-- https://gitlab.com/gitlab-org/gitlab-ee/issues?label_name%5B%5D=feature+proposal
-
-and verify the issue you're about to submit isn't a duplicate.
-
-Please remove this notice if you're confident your issue isn't a duplicate.
-
-------
-
 ### Description
 
 (Include problem, use cases, benefits, and/or goals)
@@ -25,26 +6,4 @@ Please remove this notice if you're confident your issue isn't a duplicate.
 
 ### Links / references
 
-### Documentation blurb
-
-#### Overview
-
-What is it?
-Why should someone use this feature?
-What is the underlying (business) problem?
-How do you use this feature?
-
-#### Use cases
-
-Who is this for? Provide one or more use cases.
-
-### Feature checklist
-
-Make sure these are completed before closing the issue,
-with a link to the relevant commit.
-
-- [ ] [Feature assurance](https://about.gitlab.com/handbook/product/#feature-assurance)
-- [ ] Documentation
-- [ ] Added to [features.yml](https://gitlab.com/gitlab-com/www-gitlab-com/blob/master/data/features.yml)
-
 /label ~"feature proposal"