Remove uses of remove_cron.

Change-Id: Id95228ae662880176b54903ffbcb196fbead992f

manifests/file.pp

@@ -1,5 +1,6 @@
 define logrotate::file($log,
                        $options,
+                       $ensure=present,
                        $prerotate='undef',
                        $postrotate='undef',
                        $firstaction='undef',
@@ -14,6 +15,7 @@ define logrotate::file($log,
     owner => root,
     group => root,
     mode => 644,
+    ensure => $ensure,
     content => template("logrotate/config.erb"),
     require => File["/etc/logrotate.d"],
   }