rlm_acct_unique missing in current version of Freeradius

[Mike Ely]

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