spacing.scss in sass-zero-0.0.50

- old
+ new

@@ -1,11 +1,9 @@
 // *******************************************************************
 // Default spacing scale
 // By default, Tailwind includes a generous and comprehensive numeric spacing scale.
 // Use as padding, margin, width, height, translate, etc...
 // *******************************************************************
-$size-auto: auto;
-
 $size-px:  1px;
 $size-0:   0px;
 $size-0-5: 0.125rem;
 $size-1:   0.25rem;
 $size-1-5: 0.375rem;