removed old FlyReg DataSet.  refs #1583.
removed old FlyReg DataSet.  refs #1583.



Former-commit-id: 50c63e1e23fdb18bf1a85554fd09511afb408d04
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine