test: remove util/got mocks

lib/manager/bazel/update.spec.ts

@@ -5,7 +5,6 @@ import { UpdateType } from '../../config';
 import { updateDependency } from './update';
 
 jest.mock('hasha');
-jest.mock('../../util/got');
 
 const fromStream: jest.Mock<Promise<string>> = _fromStream as any;
 

lib/manager/homebrew/update.spec.ts

@@ -3,7 +3,6 @@ import { fromStream as _fromStream } from 'hasha';
 import { updateDependency } from './update';
 
 jest.mock('hasha');
-jest.mock('../../util/got');
 
 const fromStream: jest.Mock<Promise<string>> = _fromStream as any;