Is SDW-BP section 12.8 "Dealing with large datasets" needed anymore?

SDW-BP section 12.8 "Dealing with large datasets" [1] doesn't contain any
best practices itself, and only seems to duplicate information in the
revised BP11.

It exists because we intended to echo the headings from DWBP.

I don't think we need it anymore.

Clemens, Linda; what do you think?

If you agree, I'd like to invite one of you to delete the offending section
and submit a PR. Please.

Thanks, Jeremy


[1]: http://w3c.github.io/sdw/bp/#bp-large-datasets