trim() in form_alter can't take array; unused anyway

Line 94 of primary_term.module has an issue - line 93 checks to see if $vocab['#options'] is an array, and then 94 tries to trim that array. But trim() expects a string (see http://us.php.net/trim for more info). And then there's no active code in the conditional established by line 94 anyway.

              if(is_array($vocab['#options'])){
                if(strlen(trim($vocab['#options']))){
                  // not sure why we have the line below. from old days.
                  // unset($vocab['#options'][0]);
                }
                $terms = $terms + $vocab['#options'];
              }

And trying to trim an array throws a php error. So, since it doesn't actually do anything but throw an error, these lines of code should go away.