docs(concepts) Modules page actualization (#3327)

Author: EugeneHlushko

src/content/concepts/modules.md

@@ -30,9 +30,7 @@ In contrast to [Node.js modules](https://nodejs.org/api/modules.html), webpack _
 - A [CommonJS](http://www.commonjs.org/specs/modules/1.0/) `require()` statement
 - An [AMD](https://github.com/amdjs/amdjs-api/blob/master/AMD.md) `define` and `require` statement
 - An [`@import` statement](https://developer.mozilla.org/en-US/docs/Web/CSS/@import) inside of a css/sass/less file.
-- An image url in a stylesheet (`url(...)`) or html (`<img src=...>`) file.
-
-T> webpack 1 requires a specific loader to convert ES2015 `import`; however, this is possible out of the box via webpack 2
+- An image url in a stylesheet `url(...)` or HTML `<img src=...>` file.
 
 ## Supported Module Types