RPS hook: Future-proof (#7311)

Adjusts for unnecessary `return true` pointed out in balderdashy/sails-hook-sockets#50, which will eventually no longer be a thing.  (Starting with the rps hook not using it.)

lib/hooks/pubsub/index.js

@@ -274,15 +274,14 @@ module.exports = function(sails) {
  sails.log.debug('Wrapping it in an array for you this time...');
  }
 
- _.each(ids,function (id) {
+ for (let id of ids) {
  // Attempt to join the room for the specified instance.
- if (sails.sockets.join( socket, self._room(id) )) {
- sails.log.silly(
- 'Subscribed to the ' +
- self.globalId + ' with id=' + id + '\t(room :: ' + self._room(id) + ')'
- );
- }
- });
+ sails.sockets.join( socket, self._room(id) );
+ sails.log.silly(
+ 'Subscribed to the ' +
+ self.globalId + ' with id=' + id + '\t(room :: ' + self._room(id) + ')'
+ );
+ }//∞
  },
 
  /**
@@ -325,15 +324,14 @@ module.exports = function(sails) {
  sails.log.debug('Wrapping it in an array for you this time...');
  }
 
- _.each(ids,function (id) {
+ for (let id of ids) {
  // Attempt to leave the room for the specified instance.
- if (sails.sockets.leave( socket, self._room(id))) {
- sails.log.silly(
- 'Unsubscribed from the ' +
- self.globalId + ' with id=' + id + '\t(room :: ' + self._room(id) + ')'
- );
- }
- });
+ sails.sockets.leave( socket, self._room(id));
+ sails.log.silly(
+ 'Unsubscribed from the ' +
+ self.globalId + ' with id=' + id + '\t(room :: ' + self._room(id) + ')'
+ );
+ }//∞
  },
 
  /**