rust_binder: avoid mem::take on delivered_deaths

rust_binder: avoid mem::take on delivered_deaths

Similar to the previous commit, List::remove is used on
delivered_deaths, so do not use mem::take on it as that may result in
violations of the List::remove safety requirements.

I don't think this particular case can be triggered because it requires
fd close to run in parallel with an ioctl on the same fd. But let's not
tempt fate.

Cc: stable@vger.kernel.org
Fixes: eafedbc7c050 ("rust_binder: add Rust Binder driver")
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patch.msgid.link/20251111-binder-fix-list-remove-v1-2-8ed14a0da63d@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>