As per RFC-470 I have removed the
XYTransform classes from
lsst.afw.geom. These classes were not being used anywhere (except unit tests).
A few classes had methods that took an
XYTransform but those methods were not being called (except by test code) and are now gone. The equivalents that take an
lsst.afw.geom.TransformPoint2ToPoint2 remain and are tested.
I also removed the
lsst.afw.geom.Functor class, which was solely used to specify components of
obs_lsstSim, which was unused.