refactor(nixos-tvix-cache): drop cheddar

markdown2html-converter is actually better at converting markdown to
html.

Change-Id: Ieec6b4de412c7c466a71c4ea542ef9ca950b5bee

users/flokli/nixos/nixos-tvix-cache/nar-bridge.nix

@@ -1,4 +1,4 @@
-{ config, depot, pkgs, ... }:
+{ config, pkgs, ... }:
 {
   imports = [ ./nar-bridge-module.nix ];
 
@@ -11,11 +11,10 @@
         tryFiles = "$uri $uri/index.html =404";
         root = pkgs.runCommand "index"
           {
-            nativeBuildInputs = [ depot.tools.cheddar ];
+            nativeBuildInputs = [ pkgs.markdown2html-converter ];
           } ''
           mkdir -p $out
-          cheddar README.md < ${./README.md} > $out/index.html
-          find $out
+          markdown2html-converter ${./README.md} -o $out/index.html
         '';
       };
       locations."/" = {