postfix::recipient: Try cleaning up some of the dependencies

manifests/postfix/recipient.pp

@@ -41,7 +41,7 @@ define base::postfix::recipient(
       exec { "fix-recipient-${name}":
         command => "sed -i -e 's/^${name}..*\$/${line}/' ${file}",
         unless  => "grep '^${line}\$' ${file}",
-        require => [ Exec["add-recipient-${name}"], Package['postfix'] ],
+        require => Exec["add-recipient-${name}"],
         notify  => Exec["postmap hash:${file}"],
       }
     }