Remove unnecessary scoped #[allow] attributes

Author: The0x539

src/env_dispatch.rs

@@ -809,8 +809,6 @@ pub fn use_posix_spawn() -> bool {
 
 /// Whether or not we are running on an OS where we allow ourselves to use `posix_spawn()`.
 const fn allow_use_posix_spawn() -> bool {
-    #![allow(clippy::if_same_then_else)]
-    #![allow(clippy::needless_bool)]
     // OpenBSD's posix_spawn returns status 127 instead of erroring with ENOEXEC when faced with a
     // shebang-less script. Disable posix_spawn on OpenBSD.
     if cfg!(target_os = "openbsd") {

src/wutil/wcstod.rs

@@ -197,10 +197,7 @@ where
 
 #[cfg(test)]
 mod test {
-    #![allow(overflowing_literals)]
-
     use super::{wcstod, Error};
-    use std::f64;
 
     #[test]
     #[allow(clippy::all)]