texlive: remove with statements

  # need to be used instead. Ideally, for the release branches of NixOS we

  # should be switching to the tlnet-final versions

  # (https://tug.org/historic/).

  mirrors = with version; lib.optionals final  [

  mirrors = lib.optionals version.final  [

    # tlnet-final snapshot; used when texlive.tlpdb is frozen

    # the TeX Live yearly freeze typically happens in mid-March

    "http://ftp.math.utah.edu/pub/tex/historic/systems/texlive/${toString texliveYear}/tlnet-final"

    "ftp://tug.org/texlive/historic/${toString texliveYear}/tlnet-final"

    "http://ftp.math.utah.edu/pub/tex/historic/systems/texlive/${toString version.texliveYear}/tlnet-final"

    "ftp://tug.org/texlive/historic/${toString version.texliveYear}/tlnet-final"

  ] ++ [

    # CTAN mirrors

    "https://mirror.ctan.org/systems/texlive/tlnet"

    # please note that this server is not meant for large scale deployment

    # https://tug.org/pipermail/tex-live/2019-November/044456.html

    # https://texlive.info/ MUST appear last (see tlpdbxz)

    "https://texlive.info/tlnet-archive/${year}/${month}/${day}/tlnet"

    "https://texlive.info/tlnet-archive/${version.year}/${version.month}/${version.day}/tlnet"

  ];

  tlpdbxz = fetchurl {

  # now a legacy wrapper around buildTeXEnv

  combine = import ./combine-wrapper.nix { inherit buildTeXEnv lib toTLPkgList toTLPkgSets; };

  assertions = with lib;

    assertMsg (tlpdbVersion.year == version.texliveYear) "TeX Live year in texlive does not match tlpdb.nix, refusing to evaluate" &&

    assertMsg (tlpdbVersion.frozen == version.final) "TeX Live final status in texlive does not match tlpdb.nix, refusing to evaluate";

  assertions =

    lib.assertMsg (tlpdbVersion.year == version.texliveYear) "TeX Live year in texlive does not match tlpdb.nix, refusing to evaluate" &&

    lib.assertMsg (tlpdbVersion.frozen == version.final) "TeX Live final status in texlive does not match tlpdb.nix, refusing to evaluate";

  # Pre-defined evironment packages for TeX Live schemes,

  # to make nix-env usage more comfortable and build selected on Hydra.

      (pname:

        (buildTeXEnv {

          __extraName = "combined" + lib.removePrefix "scheme" pname;

          __extraVersion = with version; if final then "-final" else ".${year}${month}${day}";

          __extraVersion = if version.final then "-final" else ".${version.year}${version.month}${version.day}";

          requiredTeXPackages = ps: [ ps.${pname} ];

          # to maintain full backward compatibility, enable texlive.combine behavior

          __combine = true;