sundials_2: remove

No package needs it now - octave 5.2.0 was the only one that needed it,
but now with octave 6.1.0 latest sundials 5.x.x is used.

pkgs/development/libraries/sundials/2.x.nix

···
-{ stdenv
-, cmake
-, fetchurl
-, python
-# GNU Octave needs KLU for ODE solvers
-, suitesparse
-, blas, lapack
-, gfortran
-, lapackSupport ? true }:
-
-assert (!blas.isILP64) && (!lapack.isILP64);
-
-stdenv.mkDerivation rec {
-  pname = "sundials";
-  version = "2.7.0";
-
-  buildInputs = [ python ] ++ stdenv.lib.optionals (lapackSupport) [
-    gfortran
-    suitesparse
-  ];
-  nativeBuildInputs = [ cmake ];
-
-  src = fetchurl {
-    url = "https://computation.llnl.gov/projects/${pname}/download/${pname}-${version}.tar.gz";
-    sha256 = "01513g0j7nr3rh7hqjld6mw0mcx5j9z9y87bwjc16w2x2z3wm7yk";
-  };
-
-  patches = [
-    (fetchurl {
-      # https://github.com/LLNL/sundials/pull/19
-      url = "https://github.com/LLNL/sundials/commit/1350421eab6c5ab479de5eccf6af2dcad1eddf30.patch";
-      sha256 = "0g67lixp9m85fqpb9rzz1hl1z8ibdg0ldwq5z6flj5zl8a7cw52l";
-    })
-  ];
-
-  cmakeFlags = [
-    "-DEXAMPLES_INSTALL_PATH=${placeholder "out"}/share/examples"
-  ] ++ stdenv.lib.optionals (lapackSupport) [
-    "-DSUNDIALS_INDEX_TYPE=int32_t"
-    # GNU Octave needs KLU for ODE solvers
-    "-DKLU_ENABLE=ON"
-    "-DKLU_INCLUDE_DIR=${suitesparse}/include"
-    "-DKLU_LIBRARY_DIR=${suitesparse}/lib"
-    "-DLAPACK_ENABLE=ON"
-    "-DLAPACK_LIBRARIES=${lapack}/lib/lapack${stdenv.hostPlatform.extensions.sharedLibrary};${blas}/lib/blas${stdenv.hostPlatform.extensions.sharedLibrary}"
-  ];
-
-  # flaky tests, and patch in https://github.com/LLNL/sundials/pull/21 doesn't apply cleanly for sundials_3
-  doCheck = false;
-  checkPhase = "make test";
-
-  meta = with stdenv.lib; {
-    description = "Suite of nonlinear differential/algebraic equation solvers";
-    homepage    = "https://computation.llnl.gov/projects/sundials";
-    platforms   = platforms.all;
-    maintainers = with maintainers; [ idontgetoutmuch ];
-    license     = licenses.bsd3;
-  };
-}

pkgs/top-level/all-packages.nix

···
     python = python3;
   };
 
-  sundials_2 = callPackage ../development/libraries/sundials/2.x.nix {
-    python = python3;
-  };
-
   sutils = callPackage ../tools/misc/sutils { };
 
   svrcore = callPackage ../development/libraries/svrcore { };

pkgs/top-level/release-alternatives.nix

···
   blasUsers = [
     # "julia_07" "julia_10" "julia_11" "julia_13" "octave" "octaveFull"
     "fflas-ffpack" "linbox" "R" "ipopt" "hpl" "rspamd" "octopus"
-    "sundials" "sundials_2" "superlu" "suitesparse_5_3" "suitesparse_4_4"
+    "sundials" "superlu" "suitesparse_5_3" "suitesparse_4_4"
     "suitesparse_4_2" "scs" "scalapack" "petsc" "cholmod-extra"
     "arpack" "qrupdate" "libcint" "iml" "globalarrays" "arrayfire" "armadillo"
     "xfitter" "lammps" "plink-ng" "quantum-espresso" "siesta"