removing duplicate border box

library/scss/_mixins.scss

@@ -45,12 +45,6 @@ TOOLS
 	overflow: hidden;
 }
 
-/* apply a natural box layout model to all elements: http://paulirish.com/2012/box-sizing-border-box-ftw/ */
-* {
-  -webkit-box-sizing: border-box;
-  -moz-box-sizing:    border-box;
-  box-sizing:         border-box;
-}
 
 /*********************
 COLORS