Drop seemingly useless class

This class being added to the non-hydrated components is actually
confusing the hydrate utility and seems to have no actual use - we
never call this selector anywhere AFAICT.

Author: reosarevok

root/static/scripts/edit/components/FormRowTextList.js

@@ -215,7 +215,7 @@ export component NonHydratedFormRowTextList(
   ...props: React.PropsOf<FormRowTextList>
 ) {
   return (
-    <FormRow className="form-row-text-list-container" rowRef={rowRef}>
+    <FormRow rowRef={rowRef}>
       <FormRowTextList {...props} />
     </FormRow>
   );

root/static/scripts/edit/components/FormRowTextListSimple.js

@@ -168,7 +168,7 @@ export component NonHydratedFormRowTextListSimple(
   ...props: React.PropsOf<FormRowTextListSimple>
 ) {
   return (
-    <FormRow className="form-row-text-list-container">
+    <FormRow>
       <FormRowTextListSimple {...props} />
     </FormRow>
   );