rlm_acct_unique missing in current version of Freeradius

At least, the Centos7 package is. I'm trying to port an install over from a Centos5 box and see acct_unique all over the configs, with a corresponding log error: Failed to link to module 'rlm_acct_unique': rlm_acct_unique.so: cannot open shared object file: No such file or directory RPM tells me that rlm_acct_unique.so came with the freeradius2 package on Centos5. So I guess my question is: has this module been deprecated/removed, or is it just missing from the vendor package for some reason? Thanks, Mike