Remove import_project_from_remote_file ff

Changelog: other

config/feature_flags/development/import_project_from_remote_file.yml

----
-name: import_project_from_remote_file
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/59033
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/330039
-milestone: '13.12'
-type: development
-group: group::import
-default_enabled: true

lib/api/project_import.rb

@@ -135,8 +135,6 @@ module API
         success Entities::ProjectImportStatus
       end
       post 'remote-import' do
-        not_found! unless ::Feature.enabled?(:import_project_from_remote_file, default_enabled: :yaml)
-
         check_rate_limit! :project_import, scope: [current_user, :project_import]
 
         response = ::Import::GitlabProjects::CreateProjectService.new(

spec/requests/api/project_import_spec.rb

@@ -306,63 +306,49 @@ RSpec.describe API::ProjectImport, :aggregate_failures do
 
     it_behaves_like 'requires authentication'
 
-    it 'returns NOT FOUND when the feature is disabled' do
-      stub_feature_flags(import_project_from_remote_file: false)
-
-      subject
-
-      expect(response).to have_gitlab_http_status(:not_found)
-    end
-
-    context 'when the feature flag is enabled' do
-      before do
-        stub_feature_flags(import_project_from_remote_file: true)
-      end
-
-      context 'when the response is successful' do
-        it 'schedules the import successfully' do
-          project = create(
-            :project,
-            namespace: user.namespace,
-            name: 'test-import',
-            path: 'test-import'
-          )
+    context 'when the response is successful' do
+      it 'schedules the import successfully' do
+        project = create(
+          :project,
+          namespace: user.namespace,
+          name: 'test-import',
+          path: 'test-import'
+        )
 
-          service_response = ServiceResponse.success(payload: project)
-          expect_next(::Import::GitlabProjects::CreateProjectService)
-            .to receive(:execute)
-            .and_return(service_response)
+        service_response = ServiceResponse.success(payload: project)
+        expect_next(::Import::GitlabProjects::CreateProjectService)
+          .to receive(:execute)
+          .and_return(service_response)
 
-          subject
+        subject
 
-          expect(response).to have_gitlab_http_status(:created)
-          expect(json_response).to include({
-            'id' => project.id,
-            'name' => 'test-import',
-            'name_with_namespace' => "#{user.namespace.name} / test-import",
-            'path' => 'test-import',
-            'path_with_namespace' => "#{user.namespace.path}/test-import"
-          })
-        end
+        expect(response).to have_gitlab_http_status(:created)
+        expect(json_response).to include({
+          'id' => project.id,
+          'name' => 'test-import',
+          'name_with_namespace' => "#{user.namespace.name} / test-import",
+          'path' => 'test-import',
+          'path_with_namespace' => "#{user.namespace.path}/test-import"
+        })
       end
+    end
 
-      context 'when the service returns an error' do
-        it 'fails to schedule the import' do
-          service_response = ServiceResponse.error(
-            message: 'Failed to import',
-            http_status: :bad_request
-          )
-          expect_next(::Import::GitlabProjects::CreateProjectService)
-            .to receive(:execute)
-            .and_return(service_response)
+    context 'when the service returns an error' do
+      it 'fails to schedule the import' do
+        service_response = ServiceResponse.error(
+          message: 'Failed to import',
+          http_status: :bad_request
+        )
+        expect_next(::Import::GitlabProjects::CreateProjectService)
+          .to receive(:execute)
+          .and_return(service_response)
 
-          subject
+        subject
 
-          expect(response).to have_gitlab_http_status(:bad_request)
-          expect(json_response).to eq({
-            'message' => 'Failed to import'
-          })
-        end
+        expect(response).to have_gitlab_http_status(:bad_request)
+        expect(json_response).to eq({
+          'message' => 'Failed to import'
+        })
       end
     end
   end