Revert "Update CHANGELOG.md for 11.9.2"

This reverts commit faab4d4b.

CHANGELOG.md

@@ -2,20 +2,6 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
-## 11.9.2 (2019-03-26)
-
-### Security (8 changes)
-
-- Disallow guest users from accessing Releases.
-- Fix PDF.js vulnerability.
-- Hide "related branches" when user does not have permission.
-- Fix XSS in resolve conflicts form.
-- Added rake task for removing EXIF data from existing uploads.
-- Return cached languages if they've been detected before.
-- Disallow updating namespace when updating a project.
-- Use UntrustedRegexp for matching refs policy.
-
-
 ## 11.9.1 (2019-03-25)
 ### Fixed (7 changes)

changelogs/unreleased/disallow-guests-to-access-releases.yml

+---
+title: Disallow guest users from accessing Releases
+merge_request:
+author:
+type: security

changelogs/unreleased/security-55503-fix-pdf-js-vulnerability.yml

+---
+title: Fix PDF.js vulnerability
+merge_request:
+author:
+type: security

changelogs/unreleased/security-56224.yml

+---
+title: Hide "related branches" when user does not have permission
+merge_request:
+author:
+type: security

changelogs/unreleased/security-56927-xss-resolve-conflicts-branch-name.yml

+---
+title: Fix XSS in resolve conflicts form
+merge_request:
+author:
+type: security

changelogs/unreleased/security-exif-migration.yml

+---
+title: Added rake task for removing EXIF data from existing uploads.
+merge_request:
+author:
+type: security

changelogs/unreleased/security-id-potential-denial-languages.yml

+---
+title: Return cached languages if they've been detected before
+merge_request:
+author:
+type: security

changelogs/unreleased/security-mass-assignment-on-project-update.yml

+---
+title: Disallow updating namespace when updating a project
+merge_request:
+author:
+type: security

changelogs/unreleased/use-untrusted-regexp.yml

+---
+title: Use UntrustedRegexp for matching refs policy
+merge_request:
+author:
+type: security