simplify placeholder css

Author: msagolj

blocks/commerce-returns-list/commerce-returns-list.css

@@ -1,14 +1,6 @@
-/* stylelint-disable no-empty-source */
-.commerce-returns-list-wrapper :has(>.commerce-returns-list.placeholder.block) {
-  position: relative;
-}
-
 .commerce-returns-list.placeholder.block::before {
   content: "Returns List";
   position: absolute;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
   font-size: 20px;
   font-weight: bold;
   color: rgb(0 0 0 / 20%);