[BUGFIX] Importer creates new translated records on every run

NewsRepository::findOneByImportSourceAndImportId() only returns
items of sys_language_uid -1,0

This patch removes the language contrain from the db query.

Resolves: #54900
Change-Id: I8116c07269a98b23e233f3a9ca702fbae7eba31e
Reviewed-on: https://review.typo3.org/26750
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer