[v11.1.x] Docs: remove aliases from incorrect files (#92302)

Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>

docs/sources/dashboards/dashboard-public/index.md

@@ -1,7 +1,4 @@
 ---
-aliases:
-  - ../features/dashboard/dashboards/
-  - dashboard-manage/
 labels:
   products:
     - cloud

docs/sources/dashboards/manage-dashboards/index.md

@@ -1,6 +1,5 @@
 ---
 aliases:
-  - ../features/dashboard/dashboards/
   - ../panels/working-with-panels/organize-dashboard/
   - ../reference/dashboard_folders/
   - dashboard-folders/

docs/sources/dashboards/use-dashboards/index.md

@@ -1,6 +1,5 @@
 ---
 aliases:
-  - ../features/dashboard/dashboards/
   - ../reference/search/
   - dashboard-ui/
   - dashboard-ui/dashboard-header/