Fix: use loose preset

Author: atomiks

.babelrc

@@ -1,8 +1,3 @@
 {
-  "presets": ["@babel/env", "@babel/react"],
-  "plugins": [
-    ["@babel/transform-destructuring", { "loose": true }, "unique"],
-    ["@babel/proposal-class-properties", { "loose": true }, "unique"],
-    ["@babel/proposal-object-rest-spread", { "loose": true }, "unique"]
-  ]
+  "presets": [["@babel/env", { "loose": true }], "@babel/react"]
 }

test/Tippy.test.js

@@ -202,12 +202,17 @@ describe('<Tippy />', () => {
 
   test('refs are preserved on the child', done => {
     class App extends React.Component {
-      refObject = React.createRef()
+      constructor(props) {
+        super(props)
+        this.refObject = React.createRef()
+      }
+
       componentDidMount() {
         expect(this.callbackRef instanceof Element).toBe(true)
         expect(this.refObject.current instanceof Element).toBe(true)
         done()
       }
+
       render() {
         return (
           <>