Remove non-needed :boolean arguments from CLI options
Remove non-needed :boolean arguments from CLI options

Mixlib::CLI can guess the value from the :long/:short arguments.
Actually it looks like it is not even using it anymore.

coletivoEITA/knife-solo,chadzilla2080/knife-solo,analog-analytics/knife-solo,leonid-shevtsov/knife-solo,coletivoEITA/knife-solo,chadzilla2080/knife-solo,matschaffer/knife-solo,a2ikm/knife-solo,a2ikm/knife-solo,matschaffer/knife-solo,chadzilla2080/knife-solo,analog-analytics/knife-solo,coletivoEITA/knife-solo,leonid-shevtsov/knife-solo,matschaffer/knife-solo,a2ikm/knife-solo,analog-analytics/knife-solo,leonid-shevtsov/knife-solo