[FIX] web: Button delete on SO line unclickable

Due to ef540eb0, the button delete was not clickable on a SO line
on safari.

opw:1848652

addons/web/static/src/less/list_view.less

@@ -84,7 +84,6 @@
         padding: 0px;
         background-style: none;
         border-style: none;
-        height: 0px;
         display: table-cell;
     }