remove unused styles

src/scss/uppy.scss

@@ -2,8 +2,8 @@
 * Uppy CSS and all of its out-of-the-box plugins
 */
 
-@import 'vendor/_include-media';
-@import 'vendor/bootstrap/bootstrap-grid';
+// @import 'vendor/_include-media';
+// @import 'vendor/bootstrap/bootstrap-grid';
 @import '_variables.scss';
 @import '_utils.scss';
 @import '_animation.scss';