doc/user: drop `man knot-resolver.systemd`

We don't have it.  Before 6.x we used to install kresd.systemd.7
but it wasn't really more detailed than the current 6.x systemd docs.

diff --git a/doc/user/gettingstarted-startup.rst b/doc/user/gettingstarted-startup.rst
index ea33951990147cbe8c85157a54d7cce1fab7f730..b2680e9b4e916b8f24c67f247d9817613a6a2b3e 100644 (file)
--- a/doc/user/gettingstarted-startup.rst
+++ b/doc/user/gettingstarted-startup.rst
@@ -13,7 +13,6 @@ The main way to run Knot Resolver is to use provided integration with ``systemd`
    $ sudo systemctl start knot-resolver.service
 
 See logs and status of running instance with ``systemctl status knot-resolver.service`` command.
-For more information about systemd integration see ``man knot-resolver.systemd``.
 
 .. warning::