drop nix::libc from *.rs nix is not used

Author: oech3

src/uucore/src/lib/features/i18n/datetime.rs

@@ -176,7 +176,6 @@ pub fn get_locale_months() -> Option<&'static [Vec<u8>; 12]> {
     not(target_os = "redox")
 ))]
 fn get_locale_months_inner() -> Option<[Vec<u8>; 12]> {
-    use nix::libc;
     use std::ffi::CStr;
 
     let abmon_items: [libc::nl_item; 12] = [

src/uucore/src/lib/mods/panic.rs

@@ -49,8 +49,6 @@ pub fn mute_sigpipe_panic() {
 /// variable. If set to "default", it restores SIGPIPE to SIG_DFL.
 #[cfg(unix)]
 pub fn preserve_inherited_sigpipe() {
-    use nix::libc;
-
     // Check if parent specified that SIGPIPE should be default
     if std::env::var_os("RUST_SIGPIPE").is_some_and(|v| v == "default") {
         unsafe { libc::signal(libc::SIGPIPE, libc::SIG_DFL) };