style: revert #2344 as the issue has been fixed (#2365)

Author: SteveLauC

src/sys/statfs.rs

@@ -71,8 +71,6 @@ type fs_type_t = libc::c_int;
 type fs_type_t = libc::__fsword_t;
 
 /// Describes the file system type as known by the operating system.
-// false positive, see: https://github.com/rust-lang/rust-clippy/issues/12537
-#[allow(clippy::duplicated_attributes)]
 #[cfg(any(
     target_os = "freebsd",
     target_os = "android",

src/sys/time.rs

@@ -12,8 +12,6 @@ const fn zero_init_timespec() -> timespec {
     unsafe { std::mem::transmute([0u8; std::mem::size_of::<timespec>()]) }
 }
 
-// false positive, see: https://github.com/rust-lang/rust-clippy/issues/12537
-#[allow(clippy::duplicated_attributes)]
 #[cfg(any(
     all(feature = "time", any(target_os = "android", target_os = "linux")),
     all(