Chore: Remove core-js polyfills (#78715)

.pa11yci-pr.conf.js

@@ -51,6 +51,7 @@ var config = {
     useIncognitoBrowserContext: false,
     standard: 'WCAG2AA',
     chromeLaunchConfig: {
+      executablePath: '/usr/bin/google-chrome',
       args: ['--no-sandbox'],
     },
     // see https://github.com/grafana/grafana/pull/41693#issuecomment-979921463 for context

babel.config.json

@@ -6,9 +6,7 @@
       "@babel/preset-env",
       {
         "bugfixes": true,
-        "browserslistEnv": "dev",
+        "browserslistEnv": "dev"
-        "useBuiltIns": "entry",
-        "corejs": "3.10"
       }
     ],
     [

package.json

@@ -165,6 +165,7 @@
     "chrome-remote-interface": "0.33.0",
     "codeowners": "^5.1.1",
     "copy-webpack-plugin": "11.0.0",
+    "core-js": "3.33.0",
     "css-loader": "6.8.1",
     "css-minimizer-webpack-plugin": "5.0.1",
     "cypress": "13.1.0",
@@ -309,7 +310,6 @@
     "combokeys": "^3.0.0",
     "comlink": "4.4.1",
     "common-tags": "1.8.2",
-    "core-js": "3.33.0",
     "d3": "7.8.5",
     "d3-force": "3.0.0",
     "d3-scale-chromatic": "3.0.0",

packages/grafana-ui/package.json

@@ -66,7 +66,6 @@
     "ansicolor": "1.1.100",
     "calculate-size": "1.1.1",
     "classnames": "2.3.2",
-    "core-js": "3.33.0",
     "d3": "7.8.5",
     "date-fns": "2.30.0",
     "hoist-non-react-statics": "3.3.2",
@@ -164,6 +163,7 @@
     "@types/tinycolor2": "1.4.3",
     "@types/uuid": "9.0.2",
     "common-tags": "1.8.2",
+    "core-js": "3.33.0",
     "css-loader": "6.8.1",
     "csstype": "3.1.2",
     "esbuild": "0.18.12",

public/app/app.ts

@@ -1,5 +1,4 @@
 import 'symbol-observable';
-import 'core-js';
 import 'regenerator-runtime/runtime';
 
 import 'whatwg-fetch'; // fetch polyfill needed for PhantomJs rendering