intrinsics: remove rustc_intrinsic_const_stable_indirect

Author: BennoLossin

library/core/src/intrinsics/mod.rs

@@ -3316,7 +3316,6 @@ pub unsafe fn va_arg<T: VaArgSafe>(ap: &mut VaListImpl<'_>) -> T;
 pub unsafe fn va_end(ap: &mut VaListImpl<'_>);
 
 /// `offset_of!` for `UnalignedField` trait.
-#[rustc_intrinsic_const_stable_indirect]
 #[rustc_intrinsic]
 #[lang = "unaligned_field_offset"]
 #[unstable(feature = "field_projections", issue = "145383")]