cluster/afr: Don't support heal info healed/heal-failed commands

Change-Id: Iecfd3150e4f4e795e3403bcb1ac56340759a37d0
BUG: 1098027
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/7766
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>