remove comment which is no longer valid as well as debug log messages

cms/djangoapps/contentstore/views.py

@@ -615,16 +615,10 @@ def delete_item(request):
     delete_children = request.POST.get('delete_children', False)
     delete_all_versions = request.POST.get('delete_all_versions', False)
 
-    logging.debug('delete_all_versions = {0}'.format(delete_all_versions))
-
     store = modulestore()
 
     item = store.get_item(item_location)
 
-    # @TODO: this probably leaves draft items dangling. My preferance would be for the semantic to be
-    # if item.location.revision=None, then delete both draft and published version
-    # if caller wants to only delete the draft than the caller should put item.location.revision='draft'
-
     if delete_children:
         _xmodule_recurse(item, lambda i: store.delete_item(i.location, delete_all_versions))
     else:

common/lib/xmodule/xmodule/modulestore/mongo.py

@@ -701,7 +701,6 @@ class MongoModuleStore(ModuleStoreBase):
         location: Something that can be passed to Location
         delete_all_versions: is here because the DraftMongoModuleStore needs it and we need to keep the interface the same. It is unused.
         """
-        logging.debug('delete_all_versions = {0}'.format(delete_all_versions))
         # VS[compat] cdodge: This is a hack because static_tabs also have references from the course module, so
         # if we add one then we need to also add it to the policy information (i.e. metadata)
         # we should remove this once we can break this reference from the course to static tabs