Removed duplicate Changelog entries

CHANGELOG

@@ -54,18 +54,6 @@ v 8.9.1
   - Fix user creation with stronger minimum password requirements !4054 (nathan-pmt)
   - Fix a wrong MR status when merge_when_build_succeeds & project.only_allow_merge_if_build_succeeds are true. !4912
   - Add SMTP as default delivery method to match gitlab-org/omnibus-gitlab!826. !4915
-  - Fix merge requests project settings help link anchor
-  - Fix GitLab project import issues related to notes and builds
-  - Improve performance of searching repository tags by name by using a memorized tag array
-  - Fix false truncated warnings with ISO-8559 files
-  - Eager load award emoji on notes
-  - Fix unwanted label unassignment when doing bulk action on issues page
-  - Improve performance of redacting Markdown references
-  - Fix 404 when accessing pipelines as guest user on public projects
-  - Fix mobile Safari bug where horizontal nav arrows would flicker on scroll
-  - Fix in auto merge when pipeline is nil
-  - Fix GitLab import project deleting imported file straight after being uploaded
-  - Fix a wrong MR status when merge_when_build_succeeds & project.only_allow_merge_if_build_succeeds are true
   - Remove duplicate 'New Page' button on edit wiki page
 
 v 8.9.0