chore: remove react-lifecycles-compat (#489)

Author: oliviertassinari

package.json

@@ -56,8 +56,7 @@
   "dependencies": {
     "dom-helpers": "^3.4.0",
     "loose-envify": "^1.4.0",
-    "prop-types": "^15.6.2",
-    "react-lifecycles-compat": "^3.0.4"
+    "prop-types": "^15.6.2"
   },
   "devDependencies": {
     "@babel/cli": "^7.4.3",

src/Transition.js

@@ -1,7 +1,6 @@
 import * as PropTypes from 'prop-types'
 import React from 'react'
 import ReactDOM from 'react-dom'
-import { polyfill } from 'react-lifecycles-compat'
 
 import { timeoutsShape } from './utils/PropTypes'
 import TransitionGroupContext from './TransitionGroupContext'
@@ -546,4 +545,4 @@ Transition.ENTERING = 2
 Transition.ENTERED = 3
 Transition.EXITING = 4
 
-export default polyfill(Transition)
+export default Transition

src/TransitionGroup.js

@@ -1,9 +1,7 @@
 import PropTypes from 'prop-types'
 import React from 'react'
-import { polyfill } from 'react-lifecycles-compat'
 import TransitionGroupContext from './TransitionGroupContext'
 
-
 import {
   getChildMapping,
   getInitialChildMapping,
@@ -169,4 +167,4 @@ TransitionGroup.propTypes = {
 
 TransitionGroup.defaultProps = defaultProps
 
-export default polyfill(TransitionGroup)
+export default TransitionGroup