Get rid of $color-almost-white

packages/@uppy/core/src/_variables.scss

@@ -8,7 +8,7 @@ $color-black: #333 !default;
 $color-gray: #939393 !default;
 // $color-asphalt-gray: #525252 !default;
 // $color-lightgray: #eaeaea !default;
-$color-almost-white: #fafafa !default;
+// $color-almost-white: #fafafa !default;
 $color-white: #fff !default;
 $color-red: #d32f2f !default;
 $color-orange: #f6a623 !default;