experiment: remove reservation impl

Author: WaffleLapkin

library/core/src/convert/mod.rs

@@ -788,20 +788,20 @@ impl<T> const From<T> for T {
     }
 }
 
-/// **Stability note:** This impl does not yet exist, but we are
-/// "reserving space" to add it in the future. See
-/// [rust-lang/rust#64715][#64715] for details.
-///
-/// [#64715]: https://github.com/rust-lang/rust/issues/64715
-#[stable(feature = "convert_infallible", since = "1.34.0")]
-#[rustc_reservation_impl = "permitting this impl would forbid us from adding \
-                            `impl<T> From<!> for T` later; see rust-lang/rust#64715 for details"]
-#[rustc_const_unstable(feature = "const_convert", issue = "143773")]
-impl<T> const From<!> for T {
-    fn from(t: !) -> T {
-        t
-    }
-}
+// /// **Stability note:** This impl does not yet exist, but we are
+// /// "reserving space" to add it in the future. See
+// /// [rust-lang/rust#64715][#64715] for details.
+// ///
+// /// [#64715]: https://github.com/rust-lang/rust/issues/64715
+// #[stable(feature = "convert_infallible", since = "1.34.0")]
+// #[rustc_reservation_impl = "permitting this impl would forbid us from adding \
+//                             `impl<T> From<!> for T` later; see rust-lang/rust#64715 for details"]
+// #[rustc_const_unstable(feature = "const_convert", issue = "143773")]
+// impl<T> const From<!> for T {
+//     fn from(t: !) -> T {
+//         t
+//     }
+// }
 
 // TryFrom implies TryInto
 #[stable(feature = "try_from", since = "1.34.0")]