Remove unused record parsing and misleading file helpers

src/cmdline.rs

@@ -1872,7 +1872,7 @@ pub fn parse_args(target: &TargetTraits, raw_cmdline: &[Cow<'_, OsStr>]) -> Pars
         } else if read_arg!("rpath", true) {
             add_rpath(&mut a, &mut rpaths, raw_arg);
         } else if read_arg!("R", true) {
-            if crate::mapped_file::is_file(raw_arg) {
+            if Path::new(raw_arg).metadata().is_ok_and(|m| !m.is_dir()) {
                 fatal!(
                     "-R{}: -R as an alias for --just-symbols is not supported",
                     raw_arg.to_string_lossy()

src/elf/mod.rs

@@ -60,10 +60,6 @@ pub unsafe trait FileRecord: Clone + Copy + Default + Send + Sync + 'static {
         unsafe { bytes.as_ptr().cast::<Self>().read_unaligned() }
     }
 
-    fn parse_all(bytes: &[u8]) -> Vec<Self> {
-        bytes.chunks_exact(Self::size()).map(Self::parse).collect()
-    }
-
     fn write(&self, buf: &mut [u8]) {
         assert!(buf.len() >= Self::size());
         // SAFETY: `buf` has room for the complete record, and copying bytes

src/mapped_file.rs

@@ -273,8 +273,3 @@ pub fn must_open_file(chroot: &Path, path: impl AsRef<Path>) -> &'static MappedF
     MappedFile::open_impl(&apply_chroot(chroot, path))
         .unwrap_or_else(|e| fatal!("cannot open {}: {e}", path.display()))
 }
-
-/// Whether a path refers to something that is not a directory.
-pub fn is_file(path: impl AsRef<Path>) -> bool {
-    path.as_ref().metadata().is_ok_and(|m| !m.is_dir())
-}