Remove obsolete jet-related code
This removes a lot of obsolete code that has been lying around in the jet packages (mostly since about 2014). This is almost entirely python config and scripts for local test running, all of which uses the deprecated "old jet config" system. A few notable items outside the jet domain:
HbbCommon.pyremoved: This has been superseded by FTag's new Run 3 derivation config.
RecExCommon: The old-style jobOptions have been removed (they're no longer in use anywhere) and the new-style ones renamed accordingly.
CaloHiveEx: This is hard-coded not to use the jets, hasn't been touched in years, and isn't called anywhere else, so I assume this bit is long since deprecated.
This should have no effect on any code currently in use.