Bug 1175326

Description of problem:
Tried to run ipa-restore when IPA not configured.
ipa-restore proceeds without error message that IPA not configured and fails.

[root@dhcp207-1 ~]# ipa-server-install --uninstall -U
Shutting down all IPA services
Removing IPA client configuration
Unconfiguring ntpd
Unconfiguring CA
Unconfiguring named
Unconfiguring web server
Unconfiguring krb5kdc
Unconfiguring kadmin
Unconfiguring directory server
Unconfiguring ipa_memcached
Unconfiguring ipa-otpd
[root@dhcp207-1 ~]# ipa-restore -p xxxxxxxx /var/lib/ipa/backup/ipa-full-2014-12-17-21-53-01/ -U
Preparing restore from /var/lib/ipa/backup/ipa-full-2014-12-17-21-53-01/ on dhcp207-1.testrelm.test
Each master will individually need to be re-initialized or
re-created from this one. The replication agreements on
masters running IPA 3.1 or earlier will need to be manually
re-enabled. See the man page for details.
Disabling all replication.
Unable to get connection, skipping disabling agreements: Unable to bind to LDAP server: [Errno 2] No such file or directory
Stopping IPA services
[Errno 2] No such file or directory: '/etc/dirsrv/slapd-EXAMPLE-COM'
[root@dhcp207-1 ~]# 

Expecting that ipa-restore should not proceed if IPA not configured and should throw following error message

"IPA is not configured on this system" like seen in case of backup

[root@dhcp207-1 ~]# ipa-backup --logs
IPA is not configured on this system.
[root@dhcp207-1 ~]#

Version-Release number of selected component (if applicable):
[root@dhcp207-1 ~]# rpm -q ipa-server
ipa-server-4.1.0-12.el7.x86_64
[root@dhcp207-1 ~]# 

How reproducible:
Always

Steps to Reproduce:
1. Install IPA server 
2. Take a full backup
3. Un-install IPA
4. Run ipa-restore pointing to backup of step(2)

Actual results:
ipa-restore proceeds without throwing error message

Expected results:
ipa-restore not proceed and should throw following error message 

"IPA is not configured on this system."