rename saeki_haruko_(idoly_pride) -> saeki_haruko

The bulk update request #8474 has been rejected.

rename saeki_haruko_(idoly_pride) -> saeki_haruko

doesn't seems to be ambiguous

There's also saeki_haruko_(take).

so saeki_haruko really is ambiguous tag. withdraw request.

The bulk update request #8474 (forum #203401) has been rejected by @nonamethanks.