celestia: move to by-name/

pkgs/by-name/ce/celestia/package.nix

@@ -6,7 +6,7 @@
   pkg-config,
   libglut,
   gtk2,
-  gtkglext,
+  gnome2,
   libjpeg_turbo,
   libtheora,
   libxmu,
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     libglut
     gtk2
-    gtkglext
+    gnome2.gtkglext
     lua
     perl
     libjpeg_turbo

pkgs/top-level/all-packages.nix

@@ -10581,10 +10581,6 @@ with pkgs;
 
   boinc-headless = boinc.override { headless = true; };
 
-  celestia = callPackage ../applications/science/astronomy/celestia {
-    inherit (gnome2) gtkglext;
-  };
-
   faissWithCuda = faiss.override {
     cudaSupport = true;
   };