Drop redundant #[allow(clippy::*)]

Author: kinto-b

benches/specializations.rs

@@ -1,4 +1,4 @@
-#![allow(unstable_name_collisions, clippy::incompatible_msrv)]
+#![allow(unstable_name_collisions)]
 
 use criterion::black_box;
 use criterion::BenchmarkId;

src/lib.rs

@@ -1,4 +1,4 @@
-#![warn(missing_docs, clippy::default_numeric_fallback)]
+#![warn(missing_docs)]
 #![crate_name = "itertools"]
 #![cfg_attr(not(feature = "use_std"), no_std)]
 

tests/quick.rs

@@ -253,7 +253,6 @@ where
         let mut it = get_it();
 
         for _ in 0..(counts.len() - 1) {
-            #[allow(clippy::manual_assert)]
             if it.next().is_none() {
                 panic!("Iterator shouldn't be finished, may not be deterministic");
             }