command: drop unused hidden flags for 'validate'
command: drop unused hidden flags for 'validate'

kingland/consul,hashicorp/consul,hashicorp/consul,42wim/consul,calgaryscientific/consul,vamage/consul,scalp42/consul,kingland/consul,youhong316/consul,youhong316/consul,vamage/consul,42wim/consul,i0rek/consul,i0rek/consul,calgaryscientific/consul,youhong316/consul,scalp42/consul,vamage/consul,kingland/consul,calgaryscientific/consul,scalp42/consul,scalp42/consul,i0rek/consul,kingland/consul,vamage/consul,42wim/consul,42wim/consul,calgaryscientific/consul,hashicorp/consul,scalp42/consul,kingland/consul,vamage/consul,youhong316/consul,hashicorp/consul,42wim/consul,calgaryscientific/consul,i0rek/consul,i0rek/consul,youhong316/consul