remove custom browserlist for our esm build (#28642)

build/rollup.config.js

@@ -11,31 +11,7 @@ const ESM = process.env.ESM === 'true'
 let fileDest = `bootstrap${ESM ? '.esm' : ''}`
 const external = ['popper.js']
 const plugins = [
-  babel(ESM ?
-    {
-      // Only transpile our source code
-      exclude: 'node_modules/**',
-      babelrc: false,
-      presets: [
-        [
-          '@babel/env',
-          {
-            loose: true,
-            modules: false,
-            targets: {
-              browsers: [
-                'Chrome >= 60',
-                'Safari >= 10.1',
-                'iOS >= 10.3',
-                'Firefox >= 54',
-                'Edge >= 15'
-              ]
-            }
-          }
-        ]
-      ]
-    } :
-    {
+  babel({
   // Only transpile our source code
     exclude: 'node_modules/**',
     // Include only required helpers

package.json

@@ -197,11 +197,11 @@
     },
     {
       "path": "./dist/js/bootstrap.esm.js",
-      "maxSize": "27 kB"
+      "maxSize": "28 kB"
     },
     {
       "path": "./dist/js/bootstrap.esm.min.js",
-      "maxSize": "18 kB"
+      "maxSize": "19 kB"
     },
     {
       "path": "./dist/js/bootstrap.js",