refactor(nixos): inline managed SSH host names

configs/nixos/modules/network/ssh.nix

@@ -15,7 +15,6 @@ let
     "zeus"
   ];
   serverNames = [ "pikachu" ];
-  managedHostNames = workstationNames ++ serverNames; # NOLINT(let_order)
   isWorkstation = lib.elem config.networking.hostName workstationNames; # NOLINT(let_order)
   isServer = lib.elem config.networking.hostName serverNames; # NOLINT(let_order)
 
@@ -28,7 +27,7 @@ let
       (../../hosts + "/${host}/ssh_host_rsa_key.pub")
     ];
   # NOLINT(let_order)
-  managedTargets = lib.genAttrs managedHostNames (name: {
+  managedTargets = lib.genAttrs (workstationNames ++ serverNames) (name: {
     hostName = registry.address.${name}.self;
     clientKey = clientKeyFor name;
     hostKeys = hostKeysFor name;