Avoid clippy divergence lint

Author: spacejam

src/lib.rs

@@ -499,23 +499,23 @@ mod compile_time_assertions {
 
     #[allow(unreachable_code)]
     fn _assert_public_types_send_sync() {
-        _assert_send::<Subscriber>(unreachable!());
-
-        _assert_send_sync::<Iter>(unreachable!());
-        _assert_send_sync::<Tree>(unreachable!());
-        _assert_send_sync::<Db>(unreachable!());
-        _assert_send_sync::<Batch>(unreachable!());
-        _assert_send_sync::<IVec>(unreachable!());
-        _assert_send_sync::<Config>(unreachable!());
-        _assert_send_sync::<CompareAndSwapError>(unreachable!());
-        _assert_send_sync::<Error>(unreachable!());
-        _assert_send_sync::<Event>(unreachable!());
-        _assert_send_sync::<Mode>(unreachable!());
+        _assert_send::<Subscriber>();
+
+        _assert_send_sync::<Iter>();
+        _assert_send_sync::<Tree>();
+        _assert_send_sync::<Db>();
+        _assert_send_sync::<Batch>();
+        _assert_send_sync::<IVec>();
+        _assert_send_sync::<Config>();
+        _assert_send_sync::<CompareAndSwapError>();
+        _assert_send_sync::<Error>();
+        _assert_send_sync::<Event>();
+        _assert_send_sync::<Mode>();
     }
 
-    fn _assert_send<S: Send>(_: &S) {}
+    fn _assert_send<S: Send>() {}
 
-    fn _assert_send_sync<S: Send + Sync>(_: &S) {}
+    fn _assert_send_sync<S: Send + Sync>() {}
 }
 
 #[cfg(all(unix, not(miri)))]