Remove unneeded Babel plugins

Author: stasm

babel_config.js

@@ -23,11 +23,5 @@ export default {
         "transform-regenerator"
       ],
     }]
-  ],
-  plugins: [
-    // Shipped in Firefox 57, Chrome 63
-    "@babel/plugin-proposal-async-generator-functions",
-    // Shipped in Firefox 55, Chrome 60
-    "@babel/plugin-proposal-object-rest-spread"
   ]
 };

fluent-react/babel.config.js

@@ -3,14 +3,13 @@ module.exports = {
   "presets": [
     "@babel/preset-react",
     ["@babel/preset-env", {
-      "targets": "node >= 8.9.0"
+      "targets": "node >= 10.0.0"
     }]
   ],
   "plugins": [
     ["babel-plugin-transform-rename-import", {
       "original": "fluent",
       "replacement": "fluent/compat"
-    }],
-    "@babel/plugin-proposal-async-generator-functions"
+    }]
   ],
 };

fluent-react/compat_config.js

@@ -9,7 +9,6 @@ export default {
     babel({
       ...babelConfig,
       plugins: [
-        ...babelConfig.plugins,
         ["babel-plugin-transform-rename-import", {
           replacements: [
             {

fluent-react/package.json

@@ -55,7 +55,6 @@
     "react": "^0.14.9 || ^15.0.0 || ^16.0.0"
   },
   "devDependencies": {
-    "@babel/plugin-proposal-async-generator-functions": "^7.2.0",
     "@babel/preset-env": "^7.5.5",
     "@babel/preset-react": "7.0.0",
     "babel-jest": "^24.8.0",

mocha_setup.js

@@ -8,8 +8,6 @@ require("@babel/register")({
       && !/node_modules\/@fluent/.test(path)
   ],
   plugins: [
-    "@babel/plugin-proposal-async-generator-functions",
-    "@babel/plugin-proposal-object-rest-spread",
     "@babel/plugin-transform-modules-commonjs"
   ]
 });

package.json

@@ -7,8 +7,6 @@
   },
   "devDependencies": {
     "@babel/core": "^7.4.3",
-    "@babel/plugin-proposal-async-generator-functions": "^7.2.0",
-    "@babel/plugin-proposal-object-rest-spread": "^7.4.3",
     "@babel/plugin-transform-modules-commonjs": "^7.4.3",
     "@babel/polyfill": "^7.4.3",
     "@babel/preset-env": "^7.4.3",