refactor: remove Babel plugins that are included in preset-env (#6614)

babel.config.js

@@ -18,10 +18,4 @@ module.exports = {
     '@babel/react',
     '@babel/preset-typescript',
   ],
-  plugins: [
-    '@babel/plugin-proposal-class-properties',
-    '@babel/plugin-proposal-object-rest-spread',
-    '@babel/plugin-proposal-nullish-coalescing-operator',
-    '@babel/plugin-proposal-optional-chaining',
-  ],
 };

package.json

@@ -61,9 +61,6 @@
     "@babel/cli": "^7.16.0",
     "@babel/core": "^7.16.0",
     "@babel/eslint-parser": "^7.16.3",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.16.0",
-    "@babel/plugin-proposal-optional-chaining": "^7.16.0",
-    "@babel/plugin-transform-modules-commonjs": "^7.16.0",
     "@babel/preset-typescript": "^7.16.0",
     "@crowdin/cli": "^3.7.1",
     "@types/fs-extra": "^9.0.6",

packages/docusaurus-plugin-pwa/package.json

@@ -20,8 +20,6 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.16.0",
-    "@babel/plugin-proposal-optional-chaining": "^7.16.0",
     "@babel/preset-env": "^7.16.11",
     "@docusaurus/core": "2.0.0-beta.15",
     "@docusaurus/theme-common": "2.0.0-beta.15",

packages/docusaurus-plugin-pwa/src/index.ts

@@ -37,11 +37,6 @@ function getSWBabelLoader() {
           },
         ],
       ],
-      plugins: [
-        require.resolve('@babel/plugin-proposal-object-rest-spread'),
-        require.resolve('@babel/plugin-proposal-optional-chaining'),
-        require.resolve('@babel/plugin-proposal-nullish-coalescing-operator'),
-      ],
     },
   };
 }

packages/docusaurus-theme-classic/babel.config.js

@@ -12,14 +12,9 @@ module.exports = {
     // we mostly need to transpile some features so that node does not crash...
     lib: {
       presets: [
+        ['@babel/preset-env', {targets: {node: 14}, modules: 'commonjs'}],
         ['@babel/preset-typescript', {isTSX: true, allExtensions: true}],
       ],
-      // Useful to transpile for older node versions
-      plugins: [
-        '@babel/plugin-transform-modules-commonjs',
-        '@babel/plugin-proposal-nullish-coalescing-operator',
-        '@babel/plugin-proposal-optional-chaining',
-      ],
     },
 
     // USED FOR JS SWIZZLE

yarn.lock

@@ -533,7 +533,7 @@
     "@babel/helper-plugin-utils" "^7.16.7"
     "@babel/plugin-syntax-logical-assignment-operators" "^7.10.4"
 
-"@babel/plugin-proposal-nullish-coalescing-operator@^7.13.8", "@babel/plugin-proposal-nullish-coalescing-operator@^7.16.0", "@babel/plugin-proposal-nullish-coalescing-operator@^7.16.7":
+"@babel/plugin-proposal-nullish-coalescing-operator@^7.13.8", "@babel/plugin-proposal-nullish-coalescing-operator@^7.16.7":
   version "7.16.7"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-nullish-coalescing-operator/-/plugin-proposal-nullish-coalescing-operator-7.16.7.tgz#141fc20b6857e59459d430c850a0011e36561d99"
   integrity sha512-aUOrYU3EVtjf62jQrCj63pYZ7k6vns2h/DQvHPWGmsJRYzWXZ6/AsfgpiRy6XiuIDADhJzP2Q9MwSMKauBQ+UQ==
@@ -577,7 +577,7 @@
     "@babel/helper-plugin-utils" "^7.16.7"
     "@babel/plugin-syntax-optional-catch-binding" "^7.8.3"
 
-"@babel/plugin-proposal-optional-chaining@^7.13.12", "@babel/plugin-proposal-optional-chaining@^7.16.0", "@babel/plugin-proposal-optional-chaining@^7.16.7":
+"@babel/plugin-proposal-optional-chaining@^7.13.12", "@babel/plugin-proposal-optional-chaining@^7.16.7":
   version "7.16.7"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.16.7.tgz#7cd629564724816c0e8a969535551f943c64c39a"
   integrity sha512-eC3xy+ZrUcBtP7x+sq62Q/HYd674pPTb/77XZMb5wbDPGWIdUbSr4Agr052+zaUPSb+gGRnjxXfKFvx5iMJ+DA==
@@ -880,7 +880,7 @@
     "@babel/helper-plugin-utils" "^7.16.7"
     babel-plugin-dynamic-import-node "^2.3.3"
 
-"@babel/plugin-transform-modules-commonjs@^7.13.8", "@babel/plugin-transform-modules-commonjs@^7.16.0", "@babel/plugin-transform-modules-commonjs@^7.16.8":
+"@babel/plugin-transform-modules-commonjs@^7.13.8", "@babel/plugin-transform-modules-commonjs@^7.16.8":
   version "7.16.8"
   resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-commonjs/-/plugin-transform-modules-commonjs-7.16.8.tgz#cdee19aae887b16b9d331009aa9a219af7c86afe"
   integrity sha512-oflKPvsLT2+uKQopesJt3ApiaIS2HW+hzHFcwRNtyDGieAeC/dIHZX8buJQ2J2X1rxGPy4eRcUijm3qcSPjYcA==