Remove Enzyme configuration for client, React is still at version 15.

packages/client/test/jest-setup.js

-import Enzyme from 'enzyme'
-import Adapter from 'enzyme-adapter-react-16'
 import path from 'path'
 
-Enzyme.configure({ adapter: new Adapter() })
-
 process.env.NODE_CONFIG_DIR = path.resolve(__dirname, '..', 'config')