std.fmt: remove `e`, `E`, `z`, and `Z` specifiers (deprecated in 0.8)
Followup to cd7c870bd81391dd97c5c75eb3910382ba7280a1.
Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
ee821b2d7fEric Joldasov committed on 6/13/2023, 5:46:56 PMparent53fc991