remove spec_helper configuration 
remove spec_helper configuration 

because from rspec3.0, the configuration, treat_symbols_as_metadata_keys_with_true_values is always true (treat_symbols_as_metadata_keys_with_true_values = false is depreceted)
sideci-sample/sideci-sample-guard,sdgdsffdsfff/guard,100star/guard,baberthal/guard,guard/guard,ginkel/guard,pjump/guard,garettarrowood/guard