Update comments

lib/modules.nix

@@ -1,3 +1,4 @@
+# TODO: Easier mkLink/mkUnlink (include more hm.dag stuff into the function)
 {
   inputs,
   pkgs,
@@ -34,14 +35,6 @@
     fi
   '';
 
-  # TODO
-  mkMultiOptStr = {}: {
-  };
-
-  # TODO
-  mkMultiOptPkg = {}: {
-  };
-
   # Returns true if base contains element
   contains = base: element:
     lib.any (x: x == element) base;