Small script to run with mongo to delete the multi-tenant databases

mongo_drop_multitenant_dbs.js

var dbs = db.getMongo().getDBNames();
for (var i in dbs) {
    db = db.getMongo().getDB( dbs[i] );
    if (db.getName().indexOf('multitenant') > -1) {
	    print('dropping db ' + db.getName());
	    db.dropDatabase();
  	}
}