RE: Remove unused argument from ApplyLogicalMappingFile()

Dear Nagata-san,

> I noticed that ApplyLogicalMappingFile() has an unused argument.
> If there is no specific reason for keeping it, I think it could be
> removed. I have attached a small patch that removes this argument.

Good catch. I found that ApplyLogicalMappingFile() has the argument since it was
introduced (b89e151) and was not used from the beginning. Maybe it was a
copy-to-paste mistake from UpdateLogicalMappings()?
I removed the argument and ran tests for subscription, they could be passed.

Best regards,
Hayato Kuroda
FUJITSU LIMITED