Remove kindlegen from shell.nix

Closes #11

shell.nix

@@ -6,8 +6,6 @@ let
     "https://github.com/nix-community/NUR/archive/master.tar.gz") {
       inherit pkgs;
     };
-  tex = with pkgs;
-    texlive.combine { inherit (texlive) scheme-medium bitter titlesec; };
 in pkgs.mkShell {
   buildInputs = with pkgs; [
     pkgs.latest.rustChannels.stable.rust
@@ -15,10 +13,6 @@ in pkgs.mkShell {
 
     pkg-config
     ncurses
-
-    kindlegen
-    nur.repos.mic92.pandoc-bin
-    tex
   ];
 
   RUST_LOG="info,majsite=debug,majsite::server=debug";