Remove deprecated finders

Gemfile

Gemfile.lock

app/controllers/admin/groups_controller.rb

app/controllers/admin/projects_controller.rb

app/controllers/admin/users_controller.rb

app/controllers/dashboard_controller.rb

app/controllers/groups_controller.rb

app/controllers/profiles/groups_controller.rb

app/controllers/projects/issues_controller.rb

app/controllers/projects/merge_requests_controller.rb

app/controllers/projects/milestones_controller.rb

app/controllers/projects/team_members_controller.rb

app/controllers/search_controller.rb

app/controllers/snippets_controller.rb

app/controllers/users_controller.rb

app/controllers/users_groups_controller.rb

app/helpers/application_helper.rb

app/mailers/emails/issues.rb

app/mailers/emails/merge_requests.rb

app/models/note.rb