treewide: remove unused with

Auto-fixed by nixf-diagnose.

nixos/modules/virtualisation/cloudstack-config.nix

@@ -1,7 +1,5 @@
 { lib, pkgs, ... }:
 
-with lib;
-
 {
   imports = [
     ../profiles/qemu-guest.nix

nixos/modules/virtualisation/openvswitch.nix

@@ -48,7 +48,7 @@ in
         name = "vswitch.db";
         dontUnpack = true;
         buildPhase = "true";
-        buildInputs = with pkgs; [
+        buildInputs = [
           cfg.package
         ];
         installPhase = "mkdir -p $out";

nixos/modules/virtualisation/vmware-host.nix

@@ -44,7 +44,7 @@ in
       package = mkPackageOption pkgs "vmware-workstation" { };
       extraPackages = mkOption {
         type = with types; listOf package;
-        default = with pkgs; [ ];
+        default = [ ];
         description = "Extra packages to be used with VMware host.";
         example = "with pkgs; [ ntfs3g ]";
       };