Fix Unlock of unlocked RWMutex when removing a host from a host policy
Fix Unlock of unlocked RWMutex when removing a host from a host policy

ChannelMeter/gocql,CrowdSurge/gocql,mailgun/gocql,gocql/gocql,revinate/gocql,gus/gocql,mailgun/gocql,nikandfor/gocql,aai/gocql,znly/gocql,CrowdSurge/gocql,ChannelMeter/gocql,Zariel/gocql,aai/gocql,znly/gocql,nikandfor/gocql,gocql/gocql,gus/gocql,i/gocql,nikandfor/gocql,vrischmann/gocql,Zariel/gocql,vrischmann/gocql,i/gocql,revinate/gocql