fix: remove icon and empty breadcrumb from libraries (#2129)

src/library-authoring/LibraryAuthoringPage.tsx

@@ -15,12 +15,11 @@ import {
   Breadcrumb,
   Button,
   Container,
-  Icon,
   Stack,
   Tab,
   Tabs,
 } from '@openedx/paragon';
-import { Add, ArrowBack, InfoOutline } from '@openedx/paragon/icons';
+import { Add, InfoOutline } from '@openedx/paragon/icons';
 import { Link, useLocation } from 'react-router-dom';
 
 import Loading from '../generic/Loading';
@@ -223,16 +222,11 @@ const LibraryAuthoringPage = ({
   const breadcumbs = componentPickerMode && !restrictToLibrary ? (
     <Breadcrumb
       links={[
-        {
-          label: '',
-          to: '',
-        },
         {
           label: intl.formatMessage(messages.returnToLibrarySelection),
           onClick: returnToLibrarySelection,
         },
       ]}
-      spacer={<Icon src={ArrowBack} size="sm" />}
       linkAs={Link}
     />
   ) : undefined;