Remove obsolete/broken native markdown class

.cirrus.yml

@@ -28,7 +28,6 @@ task:
     - luarocks54 install cassowary
     - luarocks54 install cldr
     - luarocks54 install compat53
-    - luarocks54 install cosmo
     - luarocks54 install fluent
     - luarocks54 install linenoise
     - luarocks54 install loadkit

Makefile.am

@@ -61,7 +61,7 @@ nobase_nodist_pkgdata_DATA = core/features.lua core/pathsetup.lua core/version.l
 dist_man_MANS = sile.1 sile-lua.1
 dist_doc_DATA = README.md CHANGELOG.md
 dist_pdf_DATA = $(_MANUAL)
-dist_license_DATA = LICENSE lua-libraries/LICENSE-lunamark
+dist_license_DATA = LICENSE
 bin_SCRIPTS = sile-lua
 bin_PROGRAMS = sile
 sile_SOURCES = Cargo.toml build-aux/build.rs src/bin/sile.rs src/lib.rs src/cli.rs

build-aux/create-homebrew-formula.pl

@@ -13,7 +13,6 @@
 
 my %rock_url_templates = (
     cassowary   => "https://github.com/sile-typesetter/cassowary.lua/archive/vVERSION.tar.gz",
-    cosmo       => "https://github.com/mascarenhas/cosmo/archive/vVERSION.tar.gz",
     linenoise   => "https://github.com/hoelzro/lua-linenoise/archive/VERSION.tar.gz",
     lpeg        => "http://www.inf.puc-rio.br/~roberto/lpeg/lpeg-VERSION.tar.gz",
     lua_cliargs => "https://github.com/amireh/lua_cliargs/archive/vUNSTRIPPEDVERSION.tar.gz",

configure.ac

@@ -180,7 +180,6 @@ AM_COND_IF([DEPENDENCY_CHECKS], [
         AS_IF([test "$LUA_SHORT_VERSION" -lt 53],
             AX_LUA_MODULE([compat53], [compat53])
         )
-        AX_LUA_MODULE([cosmo], [cosmo])
         AX_LUA_MODULE([cldr], [cldr])
         AX_LUA_MODULE([fluent], [fluent])
         AX_LUA_MODULE([linenoise], [linenoise])

flake.nix

@@ -43,7 +43,6 @@
       luaEnv = pkgs.lua5_3.withPackages(ps: with ps; [
         cassowary
         cldr
-        cosmo
         fluent
         linenoise
         loadkit