Merge branch 'remove-deprecated-route-dev-ops-score' into 'master'

Remove deprecated route for DevOps Score

Closes #246537

See merge request gitlab-org/gitlab!42337

config/routes/admin.rb

@@ -91,8 +91,6 @@ namespace :admin do
 
   resources :instance_statistics, only: :index
   resource :dev_ops_report, controller: 'dev_ops_report', only: :show
-  # remove in 13.5
-  get '/dev_ops_score', to: redirect('admin/dev_ops_report')
   resources :cohorts, only: :index
 
   scope(path: 'projects/*namespace_id',