remove extre PR_PUBLIC definition so everything will compile under AIX
remove extre PR_PUBLIC definition so everything will compile under AIX

ekr/nss-old,ekr/nss-old,nmav/nss,nmav/nss,ekr/nss-old,nmav/nss,nmav/nss,nmav/nss,ekr/nss-old,ekr/nss-old,nmav/nss,nmav/nss,ekr/nss-old,ekr/nss-old