diff --git a/hooks/utils.back b/hooks/utils.back
deleted file mode 100644
index d0a998bc..00000000
--- a/hooks/utils.back
+++ /dev/null
@@ -1,147 +0,0 @@
-
-#
-# Copyright 2012 Canonical Ltd.
-#
-# Authors:
-#  James Page <james.page@ubuntu.com>
-#  Paul Collins <paul.collins@canonical.com>
-#
-
-import os
-import subprocess
-import socket
-import sys
-
-
-def do_hooks(hooks):
-    hook = os.path.basename(sys.argv[0])
-
-    try:
-        hook_func = hooks[hook]
-    except KeyError:
-        juju_log('INFO',
-                 "This charm doesn't know how to handle '{}'.".format(hook))
-    else:
-        hook_func()
-
-
-def install(*pkgs):
-    cmd = [
-        'apt-get',
-        '-y',
-        'install'
-          ]
-    for pkg in pkgs:
-        cmd.append(pkg)
-    subprocess.check_call(cmd)
-
-TEMPLATES_DIR = 'templates'
-
-
-def expose(port, protocol='TCP'):
-    cmd = [
-        'open-port',
-        '{}/{}'.format(port, protocol)
-        ]
-    subprocess.check_call(cmd)
-
-
-def juju_log(severity, message):
-    cmd = [
-        'juju-log',
-        '--log-level', severity,
-        message
-        ]
-    subprocess.check_call(cmd)
-
-
-def relation_ids(relation):
-    cmd = [
-        'relation-ids',
-        relation
-        ]
-    return subprocess.check_output(cmd).split()  # IGNORE:E1103
-
-
-def relation_list(rid):
-    cmd = [
-        'relation-list',
-        '-r', rid,
-        ]
-    return subprocess.check_output(cmd).split()  # IGNORE:E1103
-
-
-def relation_get(attribute, unit=None, rid=None):
-    cmd = [
-        'relation-get',
-        ]
-    if rid:
-        cmd.append('-r')
-        cmd.append(rid)
-    cmd.append(attribute)
-    if unit:
-        cmd.append(unit)
-    value = subprocess.check_output(cmd).strip()  # IGNORE:E1103
-    if value == "":
-        return None
-    else:
-        return value
-
-
-def relation_set(**kwargs):
-    cmd = [
-        'relation-set'
-        ]
-    args = []
-    for k, v in kwargs.items():
-        if k == 'rid':
-            cmd.append('-r')
-            cmd.append(v)
-        else:
-            args.append('{}={}'.format(k, v))
-    cmd += args
-    subprocess.check_call(cmd)
-
-
-def unit_get(attribute):
-    cmd = [
-        'unit-get',
-        attribute
-        ]
-    value = subprocess.check_output(cmd).strip()  # IGNORE:E1103
-    if value == "":
-        return None
-    else:
-        return value
-
-
-def config_get(attribute):
-    cmd = [
-        'config-get',
-        attribute
-        ]
-    value = subprocess.check_output(cmd).strip()  # IGNORE:E1103
-    if value == "":
-        return None
-    else:
-        return value
-
-
-def is_clustered():
-    for r_id in (relation_ids('ha') or []):
-        for unit in (relation_list(r_id) or []):
-            relation_data = \
-                relation_get_dict(relation_id=r_id,
-                                  remote_unit=unit)
-            if 'clustered' in relation_data:
-                return True
-    return False
-
-
-def is_leader():
-    status = execute('crm resource show res_ks_vip', echo=True)[0].strip()
-    hostname = execute('hostname', echo=True)[0].strip()
-    if hostname in status:
-        return True
-    else:
-        return False