Remove the Readeruproottree from the examples
Remove the Readeruproottree from the examples
- hard to catch up with the uproot version changes
- The removal will prevent problems with the current cmake machinery used for python. The HepMC3 customized modules for python are now in python/cmake, so the calls to
find_package(Python3)
in the examples are using the non-customized modules --> conflict.