Remove unnecessary _client == NULL check
Remove unnecessary _client == NULL check

It's only every initialised to point to an object passed by reference, never NULL. So something is really wrong if it ever is NULL.

Imroy/pubsubclient,liquiddandruff/pubsubclient,Imroy/pubsubclient,doebi/pubsubclient,Protoneer/pubsubclient,koltegirish/pubsubclient,koltegirish/pubsubclient,Imroy/pubsubclient,doebi/pubsubclient,liquiddandruff/pubsubclient,hemantsangwan/Arduino-PubSubClient,koltegirish/pubsubclient,doebi/pubsubclient,vshymanskyy/pubsubclient,hemantsangwan/Arduino-PubSubClient,hemantsangwan/Arduino-PubSubClient,vshymanskyy/pubsubclient,Protoneer/pubsubclient,vshymanskyy/pubsubclient,liquiddandruff/pubsubclient,Protoneer/pubsubclient