remove the workaround for -prefork, fixed by rev 893
remove the workaround for -prefork, fixed by rev 893

git-svn-id: 5bd49132847c26fb0bf09d36ee8823e0080b2740@894 958fd67b-6ff1-0310-b445-bb7760255be9

sieutruc/qpsmtpd,priyadi/qpsmtpd,vetinari/qpsmtpd,sieutruc/qpsmtpd,smtpd/qpsmtpd,sieutruc/qpsmtpd,vetinari/qpsmtpd,priyadi/qpsmtpd,priyadi/qpsmtpd,msimerson/qpsmtpd,salvis/qpsmtpd,salvis/qpsmtpd,smtpd/qpsmtpd,msimerson/qpsmtpd