ISTWCMS-5163: remove testing code

source/_patterns/02-base/02-html-elements/26-media/_img.scss

@@ -17,13 +17,3 @@ img {
     object-fit: scale-down;
   }
 }
-.media--type-uw-mt-image[data-width],
-.media--type-uw-mt-image[data-height]{
-  background:$test-color-1;
-  img{
-    height: inherit;
-    max-width:inherit;
-    object-fit: inherit;
-    width: inherit;
-  }
-}