Update webpack config to remove explicit HMR plugin (#1729)

This change suppresses warning
"<w> [webpack-dev-server] "hot: true" automatically applies HMR plugin, you don't have to add it manually to your webpack configuration."

_scripts/webpack.renderer.config.js

@@ -149,7 +149,6 @@ const config = {
 if (isDevMode) {
   // any dev only config
   config.plugins.push(
-    new webpack.HotModuleReplacementPlugin(),
     new webpack.DefinePlugin({
       __static: `"${path.join(__dirname, '../static').replace(/\\/g, '\\\\')}"`,
     })

_scripts/webpack.web.config.js

@@ -147,7 +147,6 @@ const config = {
 if (isDevMode) {
   // any dev only config
   config.plugins.push(
-    new webpack.HotModuleReplacementPlugin(),
     new webpack.DefinePlugin({
       __static: `"${path.join(__dirname, '../static').replace(/\\/g, '\\\\')}"`,
     })

_scripts/webpack.workers.config.js

@@ -62,7 +62,6 @@ const config = {
  */
 if (isDevMode) {
   // any dev only config
-  config.plugins.push(new webpack.HotModuleReplacementPlugin())
 } else {
   config.plugins.push(
     new webpack.LoaderOptionsPlugin({