Task #79241: Streamline usage of l10n_mode
Remove l10n_mode mergeIfNotBlank
Remove the functionality of l10n_mode mergeIfNotBlank without any further replacement. Values shall be cloned from parent language record to particular localized record if the value is empty/blank there. There won't be any further behavior during frontend rendering to retrieve the value either from the parent language record or localized record during runtime.