Drop IE11 Support (#476)

webpack.config.js

@@ -81,23 +81,6 @@ const typescriptRule = {
   exclude: /node_modules/,
 };
 
-// Third party modules are compiled with babel since using ts-loader that much causes webpack to run out of memory
-const ModulesRule = {
-  test: /\.js$/,
-  use: [
-    {
-      loader: "babel-loader",
-      options: {
-        cacheDirectory: ".cache/babel",
-        presets: [["@babel/preset-env", { targets: { ie: "11" }, useBuiltIns: false }]],
-      },
-    },
-  ],
-  include: /node_modules/,
-  // Exclude large modules we know don't need transpiling
-  exclude: /vega|monaco|plotly/,
-};
-
 module.exports = function (env = {}, argv = {}) {
   const mode = argv.mode || "development";
   const rules = [fontRule, lessRule, imagesRule, cssRule, htmlRule, typescriptRule];
@@ -107,7 +90,6 @@ module.exports = function (env = {}, argv = {}) {
   };
 
   if (mode === "production") {
-    rules.push(ModulesRule);
     envVars.NODE_ENV = "production";
   }
 
@@ -235,7 +217,6 @@ module.exports = function (env = {}, argv = {}) {
       minimize: mode === "production" ? true : false,
       minimizer: [
         new TerserPlugin({
-          cache: ".cache/terser",
           terserOptions: {
             // These options increase our initial bundle size by ~5% but the builds are significantly faster and won't run out of memory
             compress: false,