[PATCH 2/2] rust: drop unnecessary lints caught by `#[expect(...)]`

["Onur Özkan" <work@onurozkan.dev>]

From: onur-ozkan <work@onurozkan.dev>

They are no longer needed.

Signed-off-by: onur-ozkan <work@onurozkan.dev>
---
 rust/kernel/cpufreq.rs | 1 -
 rust/kernel/error.rs   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/rust/kernel/cpufreq.rs b/rust/kernel/cpufreq.rs
index 7b20dff23a68..97de9b0573da 100644
--- a/rust/kernel/cpufreq.rs
+++ b/rust/kernel/cpufreq.rs
@@ -907,7 +907,6 @@ fn register_em(_policy: &mut Policy) {
 /// or CPUs, so it is safe to share it.
 unsafe impl<T: Driver> Sync for Registration<T> {}
 
-#[expect(clippy::non_send_fields_in_send_ty)]
 /// SAFETY: Registration with and unregistration from the cpufreq subsystem can happen from any
 /// thread.
 unsafe impl<T: Driver> Send for Registration<T> {}
diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 1ff2d57c2f14..05c6e71c0afb 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -413,7 +413,6 @@ pub fn from_err_ptr<T>(ptr: *mut T) -> Result<*mut T> {
         // SAFETY: The FFI function does not deref the pointer.
         let err = unsafe { bindings::PTR_ERR(const_ptr) };
 
-        #[expect(clippy::unnecessary_cast)]
         // CAST: If `IS_ERR()` returns `true`,
         // then `PTR_ERR()` is guaranteed to return a
         // negative value greater-or-equal to `-bindings::MAX_ERRNO`,
-- 
2.50.0