fix(optimization): stop removing decorators

stop removing decorators

src/rollup/ionic-rollup-resolver-plugin.ts

@@ -4,7 +4,6 @@ import { BuildContext } from '../util/interfaces';
 import { Logger } from '../logger/logger';
 import { dirname, join, resolve } from 'path';
 import * as pluginutils from 'rollup-pluginutils';
-import { optimizeJavascript } from '../aot/optimization';
 
 export const PLUGIN_NAME = 'ion-rollup-resolver';
 
@@ -56,10 +55,6 @@ export function ionicRollupResolverPlugin(context: BuildContext) {
           return null;
         }
 
-        // remove decorators if prod build
-        if (context.optimizeJs) {
-          file.content = optimizeJavascript(jsSourcePath, file.content);
-        }
 
         let mapContent: string = null;
         if (map && map.content) {