Remove comments from scss/_utilities.scss (#38181)

Author: julien-deramond

scss/_utilities.scss

@@ -178,8 +178,6 @@ $utilities: map-merge(
     ),
     "border-width": (
       property: border-width,
-      // css-var: true,
-      // css-variable-name: border-width,
       class: border,
       values: $border-widths
     ),