Cleanup clippy warnings

Drop unused allow overrides

src/main.rs

@@ -10,10 +10,7 @@
 #![allow(clippy::enum_glob_use)]
 #![allow(clippy::map_unwrap_or)]
 #![allow(clippy::match_same_arms)]
-#![allow(clippy::missing_const_for_fn)]
-#![allow(clippy::missing_errors_doc)]
 #![allow(clippy::module_name_repetitions)]
-#![allow(clippy::must_use_candidate)]
 #![allow(clippy::non_ascii_literal)]
 #![allow(clippy::option_if_let_else)]
 #![allow(clippy::too_many_lines)]