refactor: nixify / clean remaining dots scripts

lib/default.nix

@@ -4,7 +4,5 @@ let
   fs = import ./fs.nix { inherit lib; };
   hosts = import ./hosts.nix { inherit lib; };
   secrets = import ./secrets.nix { inherit lib; };
-
-  dotsPath = ../dots;
 in
-fs // hosts // secrets // { inherit dotsPath; }
+fs // hosts // secrets