remove bulk of JGI material, rehome DnA info
almost everything under https://docs.nersc.gov/science-partners/jgi/ is not specific to any set of users, with the exception of information about the DnA file system.
I suggest that this page and its children be deleted, with information from https://docs.nersc.gov/science-partners/jgi/filesystems/#dna-data-n-archive rehoused in with other file system information.