Remove issue fields public preview notice for GA (#62021)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: labudis

content/issues/planning-and-tracking-with-projects/understanding-fields/about-issue-fields.md

@@ -9,8 +9,6 @@ category:
   - Manage project items and fields
 ---
 
-{% data reusables.issues.issue-fields-public-preview-note %}
-
 Issue fields are organization-level fields that provide consistent, typed metadata across all repositories. Unlike project custom fields, issue fields are defined once at the organization level and are available on every issue and in every project across the organization. For more information on creating and managing issue fields, see [AUTOTITLE](/issues/tracking-your-work-with-issues/using-issues/managing-issue-fields-in-your-organization).
 
 ## Issue fields in public and internal projects

content/issues/tracking-your-work-with-issues/using-issues/adding-and-managing-issue-fields.md

@@ -10,8 +10,6 @@ category:
   - Create and work with issues
 ---
 
-{% data reusables.issues.issue-fields-public-preview-note %}
-
 Issue fields appear in the right-hand sidebar of issues, alongside system fields like assignees, labels, and type. You can set values when creating or editing an issue. When you select an issue type while creating an issue, any fields pinned to that type automatically appear in the sidebar.
 
 > [!NOTE]

content/issues/tracking-your-work-with-issues/using-issues/managing-issue-fields-in-your-organization.md

@@ -12,8 +12,6 @@ category:
   - Triage and organize issues
 ---
 
-{% data reusables.issues.issue-fields-public-preview-note %}
-
 Issue fields let you add structured metadata to issues across your organization. Instead of relying on labels or free-text workarounds, you can create fields like priority, effort, impact, or any custom category your team needs. Fields are defined at the organization level and apply across all repositories in your organization.
 
 ## About issue field types

data/features/issue-fields.yml

@@ -2,3 +2,4 @@
 versions:
   fpt: '*'
   ghec: '*'
+  ghes: '>=3.23'