Don't include lfs_file_locks data in export bundle

changelogs/unreleased/rd-45502-uploading-project-export-with-lfs-file-locks-fails.yml

+---
+title: Don't include lfs_file_locks data in export bundle
+merge_request: 18495
+author:
+type: fixed

lib/gitlab/import_export/import_export.yml

@@ -27,8 +27,6 @@ project_tree:
   - :releases
   - project_members:
     - :user
-  - lfs_file_locks:
-    - :user
   - merge_requests:
     - notes:
       - :author

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -537,12 +537,6 @@ ProjectCustomAttribute:
 - project_id
 - key
 - value
-LfsFileLock:
-- id
-- path
-- user_id
-- project_id
-- created_at
 Badge:
 - id
 - link_url