chore: remove unused pkgs

nixos/home/theme.nix

@@ -9,7 +9,7 @@ in
 {
   home.pointerCursor = {
     name = "Dracula-cursors";
-    package = pkgs.dracula-icon-theme;
+    package = pkgs.dracula-theme;
     size = 24;
 
     gtk.enable = true;

nixos/overlays/list.nix

@@ -17,10 +17,6 @@
       dracula-plymouth = final.callPackage ./pkgs/dracula-plymouth.nix {};
     })
 
-    (final: prev: {
-      lavanda-sddm = final.callPackage ./pkgs/lavanda-sddm.nix {};
-    })
-
     (final: prev: {
       coloryou = final.callPackage ./pkgs/coloryou/default.nix {};
     })

nixos/overlays/pkgs/lavanda-sddm.nix

@@ -1,28 +0,0 @@
-### test package
-{ stdenv
-, fetchFromGitHub
-}:
-
-stdenv.mkDerivation {
-  name = "lavanda-kde";
-  version = "unstable-2022-08-24";
-
-  src = fetchFromGitHub {
-    repo = "Lavanda-kde";
-    owner = "vinceliuice";
-    rev = "f247e5c0078df64fdee2c74d27baf479f025001e";
-    hash = "sha256-hLP4Ye3lRKSCk9I+PguAWhlHUDvIqRlRazXyOccPerQ=";
-  };
-
-  dontConfigure = true;
-  dontBuild = true;
-
-  installPhase = ''
-    runHook preInstall
-
-    mkdir -p $out/share/sddm/themes/
-    mv ./sddm/* $out/share/sddm/themes/
-
-    runHook postInstall
-  '';
-}