Where is the "mm" macro of groff Package available?

Issue

• In Red Hat Enterprise Linux 7, the groff package is missing some of the macros which worked in Red Hat Enterprise Linux 6.
• On Checking the man pages which mentions about mm macro & verified the notes under /usr/share/doc/groff-base-1.22.2/NEWS
• Why these macros are not available in groff-base-1.22.2-8.el7.x86_64which is default in Red Hat Enterprise Linux 7/7.2 DVD?
• In Red Hat Enterprise Linux 7, the execution is as follows :

[root@vm2 ~]# cat testfile | groff -p -- m
pic:fatal error: can't open `m': No such file or directory
[root@vm2 ~]# cat testfile | groff -p -mm
troff: fatal error: can't find macro file m