Remove from_mut_unchecked contract/harnesses (commented out)

Author: tautschnig

library/core/src/num/nonzero.rs

@@ -452,13 +452,6 @@ where
     #[unstable(feature = "nonzero_from_mut", issue = "106290")]
     #[must_use]
     #[inline]
-    // TODO: not sure how to refer to a parameter that is a mutable reference
-    // #[requires({
-    //     let size = core::mem::size_of::<T>();
-    //     let ptr = n as *const T as *const u8;
-    //     let slice = unsafe { core::slice::from_raw_parts(ptr, size) };
-    //     !slice.iter().all(|&byte| byte == 0)
-    // })]
     pub unsafe fn from_mut_unchecked(n: &mut T) -> &mut Self {
         match Self::from_mut(n) {
             Some(n) => n,
@@ -2435,32 +2428,6 @@ mod verify {
     nonzero_check!(u128, core::num::NonZeroU128, nonzero_check_new_unchecked_for_u128);
     nonzero_check!(usize, core::num::NonZeroUsize, nonzero_check_new_unchecked_for_usize);
 
-    // macro_rules! nonzero_check_from_mut_unchecked {
-    //     ($t:ty, $nonzero_type:ty, $harness_name:ident) => {
-    //         #[kani::proof_for_contract(<T>::from_mut_unchecked)]
-    //         pub fn $harness_name() {
-    //             let mut x: $t = kani::any();
-    //             unsafe {
-    //                 <$nonzero_type>::from_mut_unchecked(&mut x);
-    //             }
-    //         }
-    //     };
-    // }
-
-    // // Generate harnesses for multiple types
-    // nonzero_check_from_mut_unchecked!(i8, core::num::NonZeroI8, nonzero_check_from_mut_unchecked_i8);
-    // nonzero_check_from_mut_unchecked!(i16, core::num::NonZeroI16, nonzero_check_from_mut_unchecked_i16);
-    // nonzero_check_from_mut_unchecked!(i32, core::num::NonZeroI32, nonzero_check_from_mut_unchecked_i32);
-    // nonzero_check_from_mut_unchecked!(i64, core::num::NonZeroI64, nonzero_check_from_mut_unchecked_i64);
-    // nonzero_check_from_mut_unchecked!(i128, core::num::NonZeroI128, nonzero_check_from_mut_unchecked_i128);
-    // nonzero_check_from_mut_unchecked!(isize, core::num::NonZeroIsize, nonzero_check_from_mut_unchecked_isize);
-    // nonzero_check_from_mut_unchecked!(u8, core::num::NonZeroU8, nonzero_check_from_mut_unchecked_u8);
-    // nonzero_check_from_mut_unchecked!(u16, core::num::NonZeroU16, nonzero_check_from_mut_unchecked_u16);
-    // nonzero_check_from_mut_unchecked!(u32, core::num::NonZeroU32, nonzero_check_from_mut_unchecked_u32);
-    // nonzero_check_from_mut_unchecked!(u64, core::num::NonZeroU64, nonzero_check_from_mut_unchecked_u64);
-    // nonzero_check_from_mut_unchecked!(u128, core::num::NonZeroU128, nonzero_check_from_mut_unchecked_u128);
-    // nonzero_check_from_mut_unchecked!(usize, core::num::NonZeroUsize, nonzero_check_from_mut_unchecked_usize);
-
     macro_rules! nonzero_check_cmp {
         ($nonzero_type:ty, $nonzero_check_cmp_for:ident) => {
             #[kani::proof]