removed depricated shell.nix

shell.nix

@@ -1,32 +0,0 @@
-let
-  pkgs = import <nixpkgs> { };
-
-  libraries = with pkgs;[
-    webkitgtk
-    gtk3
-    cairo
-    gdk-pixbuf
-    glib
-    dbus
-    openssl_3
-  ];
-
-  packages = with pkgs; [
-    pkg-config
-    dbus
-    openssl_3
-    glib
-    gtk3
-    libsoup
-    webkitgtk
-    appimagekit
-  ];
-in
-pkgs.mkShell {
-  buildInputs = packages;
-
-  shellHook =
-    ''
-      export LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath libraries}:$LD_LIBRARY_PATH
-    '';
-}