chore(server,ml): remove object detection job and endpoint (#2627)

* removed object detection job

* removed object detection endpoint

server/libs/domain/test/machine-learning.repository.mock.ts

@@ -3,7 +3,6 @@ import { IMachineLearningRepository } from '../src';
 export const newMachineLearningRepositoryMock = (): jest.Mocked<IMachineLearningRepository> => {
   return {
     classifyImage: jest.fn(),
-    detectObjects: jest.fn(),
     encodeImage: jest.fn(),
     encodeText: jest.fn(),
     detectFaces: jest.fn(),