RVRNEXT-30 remove unnecessary css selector

public/static/css/rvr.css

@@ -528,10 +528,6 @@ p.paginateContainer > *:not(:last-child) {
     border-right: solid #869ab9 1px;
 }
 
-.choices__inner {
-    box-sizing: border-box;
-}
-
 @media screen and (max-width: 424px) {
     div.gridContainer {
         grid-template-columns: auto;