fix double deletion of draftnodes

osf/models/user.py

@@ -1987,14 +1987,10 @@ def gdpr_delete(self):
         # This is doesn't to remove identifying info, but ensures other users can't see the deleted user's profile etc.
         self.deactivate_account()
 
-        # delete all personal nodes (one contributor), bookmarks, quickfiles etc.
+        # delete all personal nodes (one contributor), bookmarks, draftnodes etc.
         for node in personal_nodes.all():
-            if isinstance(node, DraftNode):
-                logger.info(f'Hard-deleting draftnode (pk: {node.pk})...')
-                node.delete()
-            else:
-                logger.info(f'Soft-deleting node (pk: {node.pk})...')
-                node.remove_node(auth=Auth(self))
+            logger.info(f'Soft-deleting node (pk: {node.pk})...')
+            node.remove_node(auth=Auth(self))
 
         for draft_registration in personal_draft_registrations.all():
             logger.info(f'Hard-deleting draft registrations (pk: {draft_registration.pk})...')