1 files changed, 0 insertions, 49 deletions
diff --git a/library/std/src/sys_common/io.rs b/library/std/src/sys_common/io.rs
deleted file mode 100644
index 6f6f282d432..00000000000
--- a/library/std/src/sys_common/io.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-// Bare metal platforms usually have very small amounts of RAM
-// (in the order of hundreds of KB)
-pub const DEFAULT_BUF_SIZE: usize = if cfg!(target_os = "espidf") { 512 } else { 8 * 1024 };
-
-#[cfg(test)]
-#[allow(dead_code)] // not used on emscripten and wasi
-pub mod test {
-    use rand::RngCore;
-
-    use crate::path::{Path, PathBuf};
-    use crate::{env, fs, thread};
-
-    pub struct TempDir(PathBuf);
-
-    impl TempDir {
-        pub fn join(&self, path: &str) -> PathBuf {
-            let TempDir(ref p) = *self;
-            p.join(path)
-        }
-
-        pub fn path(&self) -> &Path {
-            let TempDir(ref p) = *self;
-            p
-        }
-    }
-
-    impl Drop for TempDir {
-        fn drop(&mut self) {
-            // Gee, seeing how we're testing the fs module I sure hope that we
-            // at least implement this correctly!
-            let TempDir(ref p) = *self;
-            let result = fs::remove_dir_all(p);
-            // Avoid panicking while panicking as this causes the process to
-            // immediately abort, without displaying test results.
-            if !thread::panicking() {
-                result.unwrap();
-            }
-        }
-    }
-
-    #[track_caller] // for `test_rng`
-    pub fn tmpdir() -> TempDir {
-        let p = env::temp_dir();
-        let mut r = crate::test_helpers::test_rng();
-        let ret = p.join(&format!("rust-{}", r.next_u32()));
-        fs::create_dir(&ret).unwrap();
-        TempDir(ret)
-    }
-}