fix(#3289): removes HMR plugin from prod webpack configs (#3319)

Author: JarrodMFlesch

src/bundlers/webpack/configs/base.ts

@@ -88,6 +88,5 @@ export const getBaseConfig = (payloadConfig: SanitizedConfig): Configuration =>
       template: payloadConfig.admin.indexHTML,
       filename: path.normalize('./index.html'),
     }),
-    new webpack.HotModuleReplacementPlugin(),
   ],
 });