Actually drop mongo database

The echo command we were using wasn't actually dropping the mongo
database, but rather echoing 'db.dropDatabase();' | mongo pulp_database

This resulted in data being restored on an existing database.

So the mongo database stayed during restore. We didn't notice many issues
because not much is in the mongo database on a clean satellite install.

Fixes #259

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:

roles/satellite-clone/tasks/restore_mongo_dump.yml

@@ -1,5 +1,5 @@
 - name: Drop old mongo database
-  command: echo 'db.dropDatabase();' | mongo pulp_database
+  command: mongo pulp_database --eval "db.dropDatabase()"
 
 - name: Restore new mongo data
   command: mongorestore --host localhost {{ backup_dir }}/mongo_dump/pulp_database/