Bug 500439: remove unused function SECU_GetCert added in the previous checkin.
Bug 500439: remove unused function SECU_GetCert added in the previous
checkin.

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