Remove issue creation instructions from template

Looks like all paths to issue creation (other than directly) already have this template

.github/ISSUE_TEMPLATE/create-an-issue.md

@@ -5,13 +5,3 @@ title: ''
 labels: ''
 assignees: ''
 ---
-
-<!--
-Hello!
-
-If you have a feature request or bug report for PR Preview Action: please go ahead and create this issue!
-
-If you have a question about how to use or how to get started with PR Preview Action: please don't create an issue! Start a new discussion instead: https://github.com/rossjrw/pr-preview-action/discussions
-
-Thank you!
--->