major: remove @babel/preset-react as dependency

Author: chrisbreiding

README.md

@@ -63,10 +63,7 @@ Object of webpack options. Just `require` in the options from your `webpack.conf
         use: [{
           loader: 'babel-loader',
           options: {
-            presets: [
-              'babel-preset-env',
-              'babel-preset-react',
-            ],
+            presets: ['babel-preset-env'],
           },
         }],
       },

index.js

@@ -19,7 +19,7 @@ const defaultOptions = {
             {
               loader: require.resolve('babel-loader'),
               options: {
-                presets: ['@babel/preset-env', '@babel/preset-react'].map(require.resolve),
+                presets: require.resolve('@babel/preset-env'),
               },
             },
           ],

package.json

@@ -57,7 +57,6 @@
   "peerDependencies": {
     "@babel/core": "^7.0.1",
     "@babel/preset-env": "^7.0.0",
-    "@babel/preset-react": "^7.0.0",
     "babel-loader": "^8.0.2",
     "webpack": "^4.18.1"
   },