docs: update current docstrings

Author: mariajgrimaldi

openedx/core/djangoapps/content_libraries/permissions.py

@@ -127,7 +127,6 @@ class HasPermissionInContentLibraryScope(Rule):
             >>> library = ContentLibrary.objects.get(org__short_name='DemoX', slug='CSPROB')
             >>> if perms['libraries.view_library'].check(request.user, library):
             ...     # User can view this specific library
-            ...     return render_library(library)
 
     Note:
         The library keys in authorization scopes must have the format 'lib:ORG:SLUG'