Rollbacks gin fix to smart_date.css

Closes #3399924

css/smart_date.css

@@ -179,7 +179,11 @@ tr.even .smartdate--widget .form-type--select label {
   }
   /* Use a different bottom margin for Claro and Gin */
   .fieldset__wrapper .smartdate--time-inline .smartdate--separator {
-    margin: 0 0.5rem 1.5rem;
+    margin: 0 0.5rem 0.75rem;
+  }
+  .field-multiple-table tr .fieldset__wrapper .smartdate--time-inline .form-item {
+    margin-top: 0px;
+    margin-bottom: 0px;
   }
   .smartdate--time-inline .form-datetime-wrapper .form-items-inline,
   .smartdate--time-inline div.time-start,