Remove unused PyLease; skip flaky httpservers test on macOS (#8821)

* Remove unused PyLease

PyLease wrapped a read guard over the object's type when `typ` was a
`PyRwLock<PyTypeRef>`. Its last users, `class()` and `lease_class()`,
went away when `typ` became a `PyAtomicRef<PyType>` (#3828). Its field
is private and it has no constructor, so it cannot be built anywhere.

Assisted-by: Claude Code:claude-opus-5-5

* Skip test_large_content_length_truncated on macOS

The test sets the CGI handler timeout to 1ms. That timeout also bounds
reading the request line, so when the client has not sent the request
within 1ms the server logs "Request timed out" and closes the
connection. The client then gets ConnectionResetError or
BrokenPipeError. This reproduces on macOS with both RustPython and
CPython 3.14.6. The skip was removed in #8759 after Linux-only
repeats.

Assisted-by: Claude Code:claude-opus-5-5

Lib/test/test_httpservers.py

@@ -1131,6 +1131,7 @@ class CGIHTTPServerTestCase(BaseTestCase):
             res = self.request('/cgi-bin/file7.py', 'POST', body, headers)
             self.assertEqual(res.read(), b'%d %d' % (size, size) + self.linesep)
 
+    @unittest.skipIf(sys.platform == "darwin", "TODO: RUSTPYTHON; flaky: the 1ms handler timeout also bounds reading the request line")
     def test_large_content_length_truncated(self):
         with support.swap_attr(self.request_handler, 'timeout', 0.001):
             for w in range(18, 65):

crates/vm/src/object/ext.rs

@@ -2,10 +2,7 @@ use super::{
     core::{Py, PyObject, PyObjectRef, PyRef},
     payload::PyPayload,
 };
-use crate::common::{
-    atomic::{Ordering, PyAtomic, Radium},
-    lock::PyRwLockReadGuard,
-};
+use crate::common::atomic::{Ordering, PyAtomic, Radium};
 use crate::{
     VirtualMachine,
     builtins::{PyBaseExceptionRef, PyStrInterned, PyType},
@@ -729,46 +726,6 @@ impl PyObject {
 //     }
 // }
 
-/// A borrow of a reference to a Python object. This avoids having clone the `PyRef<T>`/
-/// `PyObjectRef`, which isn't that cheap as that increments the atomic reference counter.
-// TODO: check if we still need this
-#[allow(dead_code)]
-pub struct PyLease<'a, T: PyPayload> {
-    inner: PyRwLockReadGuard<'a, PyRef<T>>,
-}
-
-impl<T: PyPayload> PyLease<'_, T> {
-    #[inline(always)]
-    #[must_use]
-    pub fn into_owned(self) -> PyRef<T> {
-        self.inner.clone()
-    }
-}
-
-impl<T: PyPayload> Borrow<PyObject> for PyLease<'_, T> {
-    #[inline(always)]
-    fn borrow(&self) -> &PyObject {
-        self.inner.as_ref()
-    }
-}
-
-impl<T: PyPayload> Deref for PyLease<'_, T> {
-    type Target = PyRef<T>;
-    #[inline(always)]
-    fn deref(&self) -> &Self::Target {
-        &self.inner
-    }
-}
-
-impl<T> fmt::Display for PyLease<'_, T>
-where
-    T: PyPayload + fmt::Display,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        fmt::Display::fmt(&**self, f)
-    }
-}
-
 impl<T: PyPayload> ToPyObject for PyRef<T> {
     #[inline(always)]
     fn to_pyobject(self, _vm: &VirtualMachine) -> PyObjectRef {