Revert "Disable REX on install"

This reverts commit 09387bf.

Fixes #272 - see issue for more context

docs/satellite-clone.md

@@ -4,7 +4,8 @@
 
   - The playbook will update the cloned Satellite hostname to match the hostname of the original Satellite from which the backup is generated.
   - On the clone, refreshing the manifest will invalidate the original Satellite's manifest.
-  - DHCP, DNS, TFTP, and remote execution will be disabled during the install to avoid configuration errors. If you want to use provisioning on the cloned Satellite, you will have to manually re-enable these settings after the playbook run.
+  - DHCP, DNS, and TFTP will be disabled during the install to avoid configuration errors. If you want to use provisioning on the cloned Satellite, you will have to manually re-enable these settings after the playbook run.
+  - If you are using Remote Execution, you will have to re-copy the ssh keys to your clients. The keys are regenerate during the install portion of the clone process.
   - The playbook will reset the admin password to "changeme".
   - The playbook run may may take a while to complete.
   - You can clone RHEL 6 backup data to a RHEL 7 machine.  In this case, you must update the variable `rhel_migration` to true as explained later in this document. Please note that this scenario is supported only for *Satellite 6.2*.

roles/satellite-clone/tasks/main.yml

@@ -163,7 +163,7 @@
   command: katello-installer --capsule-dns false --capsule-dhcp false --capsule-tftp false
   when: satellite_version == 6.1
 - name: run Satellite 6.2 installer
-  command: satellite-installer --scenario satellite --foreman-proxy-dns false --foreman-proxy-dhcp false --foreman-proxy-tftp false --no-enable-foreman-plugin-remote-execution --no-enable-foreman-proxy-plugin-remote-execution-ssh
+  command: satellite-installer --scenario satellite --foreman-proxy-dns false --foreman-proxy-dhcp false --foreman-proxy-tftp false
   when: satellite_version == 6.2
 
 - block: