Use the new net.ifnames kernel command line flag to disable persistent interface names

Signed-off-by: Shea Levy <shea@shealevy.com>

modules/services/hardware/udev.nix

@@ -83,10 +83,6 @@ let
         grep -l '\(RUN+\|IMPORT{program}\)="\(/usr\)\?/s\?bin' $i/*/udev/rules.d/* || true
       done
 
-      ${optionalString (!config.networking.usePredictableInterfaceNames) ''
-        ln -s /dev/null $out/80-net-name-slot.rules
-      ''}
-
       # If auto-configuration is disabled, then remove
       # udev's 80-drivers.rules file, which contains rules for
       # automatically calling modprobe.
@@ -222,6 +218,8 @@ in
         }
       ];
 
+    boot.extraKernelParams = mkIf (! config.networking.usePredictableInterfaceNames) [ "net.ifnames=0" ];
+
     system.requiredKernelConfig = with config.lib.kernelConfig; [
       (isEnabled "UNIX")
       (isYes "INOTIFY_USER")