0.22.0-rc2

fix(userspace/libsinsp): avoid setting evt fdinfo in fch* parsers

Setting the event's fdinfo by leveraging the event's fd parameter is
already done in `sinsp_parser::reset()` and can be avoided the
`fchmod/fchown` exit event parsers. This means completely remove this
parsers.

Signed-off-by: Leonardo Di Giovanna <leonardodigiovanna1@gmail.com>