Feature/remove systemjs from demos. Сleanup - #34836

Feature/remove systemjs from demos. Сleanup#34836

vorobey merged 20 commits into

DevExpress:feature/remove-systemjs-from-demosDevExpress/DevExtreme:feature/remove-systemjs-from-demosfrom

GoodDayForSurf:feature/remove-systemjs-from-demos-cleanGoodDayForSurf/DevExtreme:feature/remove-systemjs-from-demos-cleanCopy head branch name to clipboard