Remove commented koans

We can't pull this off right now since answers can't be expressions.

test/koans/atoms_koans_test.exs

@@ -7,8 +7,6 @@ defmodule AtomsTests do
       :human,
       {:multiple, [:atomized, "stringified"]},
       {:multiple, ["Jay", "Jay"]},
-      #{:multiple, ["Jay", quote(do: map.name), "Jay"]},
-      #{:multiple, [nil, quote(do: map.age)]},
       {:multiple, [true, true, true, false]},
       {:multiple, [true, String, "HELLO"]},
       {:multiple, [true, [1,2,3]]},