Rollup merge of #145095 - tiif:unstable_const_param, r=BoxyUwU

Migrate `UnsizedConstParamTy`  to unstable impl of `ConstParamTy_`

Now that we have ``#[unstable_feature_bound]``, we can remove ``UnsizedConstParamTy`` that was meant to be an unstable impl of stable type and ``ConstParamTy_`` trait.

r? `@BoxyUwU`

1 files changed, 2 insertions, 8 deletions

diff --git a/library/core/src/tuple.rs b/library/core/src/tuple.rs
index 3892f831076..c57a8d81ade 100644
--- a/library/core/src/tuple.rs
+++ b/library/core/src/tuple.rs
@@ -1,7 +1,7 @@
 // See core/src/primitive_docs.rs for documentation.
 
 use crate::cmp::Ordering::{self, *};
-use crate::marker::{ConstParamTy_, StructuralPartialEq, UnsizedConstParamTy};
+use crate::marker::{ConstParamTy_, StructuralPartialEq};
 use crate::ops::ControlFlow::{self, Break, Continue};
 
 // Recursive macro for implementing n-ary tuple functions and operations
@@ -47,19 +47,13 @@ macro_rules! tuple_impls {
         maybe_tuple_doc! {
             $($T)+ @
             #[unstable(feature = "adt_const_params", issue = "95174")]
+            #[unstable_feature_bound(unsized_const_params)]
             impl<$($T: ConstParamTy_),+> ConstParamTy_ for ($($T,)+)
             {}
         }
 
         maybe_tuple_doc! {
             $($T)+ @
-            #[unstable(feature = "unsized_const_params", issue = "95174")]
-            impl<$($T: UnsizedConstParamTy),+> UnsizedConstParamTy for ($($T,)+)
-            {}
-        }
-
-        maybe_tuple_doc! {
-            $($T)+ @
             #[unstable(feature = "structural_match", issue = "31434")]
             impl<$($T),+> StructuralPartialEq for ($($T,)+)
             {}