Revert "Merge branch '35289-remove-existence-check-in-url-constrainer' into 'master'"

app/controllers/application_controller.rb

...eased/35289-remove-existence-check-in-url-constrainer.yml

config/routes/git_http.rb

config/routes/project.rb

ee/config/routes/admin.rb

ee/config/routes/group.rb

ee/config/routes/project.rb

ee/spec/controllers/groups/boards_controller_spec.rb

ee/spec/controllers/projects/boards_controller_spec.rb

.../controllers/projects/managed_licenses_controller_spec.rb

...ntrollers/projects/settings/operations_controller_spec.rb

ee/spec/support/shared_examples/controllers/recent_boards.rb

lib/constraints/project_url_constrainer.rb

lib/gitlab/patch/draw_route.rb

spec/controllers/application_controller_spec.rb

spec/controllers/projects/commits_controller_spec.rb

spec/controllers/projects/error_tracking_controller_spec.rb

spec/controllers/projects/issues_controller_spec.rb

spec/controllers/projects/releases_controller_spec.rb

spec/controllers/projects/tags_controller_spec.rb