Remove cleanup of previous configuration.

Remove cleanup of a previous way to handle the configuration of
syslog. This cleanup has been there since at least 2017, probably
since 2012. If it hasn't had effect by now it never will.

manifests/init.pp

@@ -130,14 +130,6 @@ class syslog::client(
 	    require => Package['rsyslog'],
 	    notify => Service['rsyslog'];
     }
-    # Remove remnants of the old way we configured this
-    delete_lines {
-	'old-syslog-central':
-	    file => '/etc/rsyslog.conf',
-	    pattern => '^\s*[*a-zA-Z0-9]+\.\*\s+@.*',
-	    require => File[$cfg_d_file],
-	    notify => Service['rsyslog'];
-    }
 }