Add TODO

Author: sabiwara

Diff for: lib/elixir/lib/float.ex

@@ -422,7 +422,8 @@ defmodule Float do
     end
   end
 
-  # Tricking the compiler to avoid this bug in versions before OTP27
+ # TODO remove once we require Erlang/OTP 27+
+  # Tricking the compiler to avoid this bug in previous versions
   # https://github.com/elixir-lang/elixir/blob/main/lib/elixir/lib/float.ex#L408-L412
   defp minus_zero, do: -0.0