Don't try to copy /root/test-firmware to /nix/store

svn path=/nixos/trunk/; revision=21316

modules/services/hardware/udev.nix

@@ -160,11 +160,6 @@ in
     
     services.udev.packages = [extraUdevRules];
 
-    # As a fallback, allow firmware to be placed in
-    # /root/test-firmware (primarily for testing).
-    hardware.firmware = pkgs.lib.optional
-      (builtins.pathExists /root/test-firmware) /root/test-firmware;
-
     jobs.udev =
       { startOn = "startup";