Erlang (epmd) daemon is incorrectly configured in Swift nodes

Issue

• Swift storage nodes have the Erlang (epmd) service deployed and enabled, believe this is unnecessary and should be fixed/removed.

  $ ps axf
  
     2832 ?        Ss     0:00 /usr/sbin/crond -n
    27115 ?        S      0:00 /usr/lib64/erlang/erts-7.3.1.4/bin/epmd -daemon
    27418 ?        Ss     0:00 /usr/sbin/ntpd -u ntp:ntp -g
    27598 ?        Ss     0:00 /usr/sbin/sshd -D
    39047 ?        Ss     0:00  \_ sshd: heat-admin [priv]
    39050 ?        S      0:00      \_ sshd: heat-admin@pts/0
    39051 pts/0    Ss     0:00          \_ -bash
    42465 pts/0    R+     0:00              \_ ps axf
    38333 ?        Ss     0:00 /usr/sbin/snmpd -LS0-6d -f
    38363 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-account-replicator /etc/swift/account-server.conf
    38393 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-account-reaper /etc/swift/account-server.conf
    38436 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-account-auditor /etc/swift/account-server.conf
    38473 ?        Ss     0:02 /usr/bin/python2 /usr/bin/swift-object-server /etc/swift/object-server.conf
    38550 ?        S      0:00  \_ /usr/bin/python2 /usr/bin/swift-object-server /etc/swift/object-server.conf
    38519 ?        Ss     0:02 /usr/bin/python2 /usr/bin/swift-account-server /etc/swift/account-server.conf
    38599 ?        S      0:00  \_ /usr/bin/python2 /usr/bin/swift-account-server /etc/swift/account-server.conf
    38564 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-object-replicator /etc/swift/object-server.conf
    38601 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-object-auditor /etc/swift/object-server.conf
    38641 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-object-updater /etc/swift/object-server.conf
    38694 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-container-replicator /etc/swift/container-server.conf
    38741 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-container-auditor /etc/swift/container-server.conf
    38781 ?        Ss     0:02 /usr/bin/python2 /usr/bin/swift-container-server /etc/swift/container-server.conf
    38857 ?        S      0:00  \_ /usr/bin/python2 /usr/bin/swift-container-server /etc/swift/container-server.conf
    38831 ?        Ss     0:00 /usr/bin/python2 /usr/bin/swift-container-updater /etc/swift/container-server.conf