Remove unnecessary optimization in dev.
Remove unnecessary optimization in dev.

MirekSz/webpack-es6-ts,keokilee/react-typescript-boilerplate,MirekSz/webpack-es6-ts,lukephills/react-typescript-boilerplate,keokilee/react-typescript-boilerplate,joelaguero/portfolio-2017,keokilee/react-typescript-boilerplate,joelaguero/portfolio-2017,joelaguero/portfolio-2017,MirekSz/webpack-es6-ts,lukephills/react-typescript-boilerplate,lukephills/react-typescript-boilerplate