Part of lp.translations.scripts
| Function | commit_transaction | Commit ongoing transaction, start a new one. | 
| Class | DeletionLoopRunner | Generic loop tuner for removal of obsolete translations data. | 
| Class | TranslationsStatusChecker | Check if translations data is consistent after removal. | 
| Class | RemoveObsoleteTranslations | No class docstring; 2/4 methods documented |