Remove redundant Z_SET_REFCOUNT calls
Remove redundant Z_SET_REFCOUNT calls

The zval ref counts are already 1 at the time this is called.

mongodb-labs/mongo-php-driver-prototype,jmikola/mongo-php-driver,mongodb/mongo-php-driver,10gen-labs/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,10gen-labs/mongo-php-driver-prototype,mongodb-labs/mongo-php-driver-prototype,jmikola/mongo-php-driver-prototype,jmikola/mongo-php-driver,jmikola/mongo-php-driver-prototype,mongodb/mongo-php-driver,mongodb-labs/mongo-php-driver-prototype,derickr/mongo-php-driver,mongodb/mongo-php-driver,jmikola/mongo-php-driver,mongodb-labs/mongo-php-driver-prototype,mongodb/mongo-php-driver,10gen-labs/mongo-php-driver-prototype,derickr/mongo-php-driver,jmikola/mongo-php-driver-prototype,jmikola/mongo-php-driver-prototype,derickr/mongo-php-driver,10gen-labs/mongo-php-driver-prototype,10gen-labs/mongo-php-driver-prototype,mongodb-labs/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,derickr/mongo-php-driver,jmikola/mongo-php-driver,derickr/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,jmikola/mongo-php-driver-prototype,derickr/mongo-php-driver,derickr/mongo-php-driver-prototype,jmikola/mongo-php-driver,derickr/mongo-php-driver,mongodb/mongo-php-driver