Fix unused warnings in Rust Proto

PiperOrigin-RevId: 628973552

rust/BUILD

@@ -48,7 +48,6 @@ rust_library(
 PROTOBUF_SHARED = [
     "enum.rs",
     "internal.rs",
-    "macros.rs",
     "optional.rs",
     "primitive.rs",
     "proxied.rs",

rust/cpp.rs

@@ -10,7 +10,7 @@
 use crate::__internal::{Enum, Private};
 use crate::{
     Map, MapIter, Mut, ProtoStr, Proxied, ProxiedInMapValue, ProxiedInRepeated, Repeated,
-    RepeatedMut, RepeatedView, SettableValue, View,
+    RepeatedMut, RepeatedView, View,
 };
 use core::fmt::Debug;
 use paste::paste;

rust/macros.rs

@@ -1,47 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2023 Google LLC.  All rights reserved.
-//
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file or at
-// https://developers.google.com/open-source/licenses/bsd
-
-//! Runtime-internal macros
-
-/// Defines a `impl SettableValue<$proxied> for SomeType` body that forwards to
-/// another implementation.
-///
-/// # Example
-/// ```ignore
-/// impl<'a, const N: usize> SettableValue<[u8]> for &'a [u8; N] {
-///     // Use the `SettableValue<[u8]>` implementation for `&[u8]`:
-///     impl_forwarding_settable_value!([u8], self => &self[..]);
-/// }
-/// ```
-macro_rules! impl_forwarding_settable_value {
-    ($proxied:ty, $self:ident => $self_forwarding_expr:expr) => {
-        fn set_on<'b>(
-            $self,
-            _private: $crate::__internal::Private,
-            mutator: $crate::Mut<'b, $proxied>,
-        ) where $proxied: 'b {
-            ($self_forwarding_expr).set_on(Private, mutator)
-        }
-
-        fn set_on_absent(
-            $self,
-            _private: $crate::__internal::Private,
-            absent_mutator: <$proxied as $crate::ProxiedWithPresence>::AbsentMutData<'_>,
-        ) -> <$proxied as $crate::ProxiedWithPresence>::PresentMutData<'_> {
-            ($self_forwarding_expr).set_on_absent($crate::__internal::Private, absent_mutator)
-        }
-
-        fn set_on_present(
-            $self,
-            _private: $crate::__internal::Private,
-            present_mutator: <$proxied as $crate::ProxiedWithPresence>::PresentMutData<'_>,
-        ) {
-            ($self_forwarding_expr).set_on_present($crate::__internal::Private, present_mutator)
-        }
-    };
-}
-pub(crate) use impl_forwarding_settable_value;

rust/shared.rs

@@ -56,7 +56,6 @@ pub mod __runtime;
 
 #[path = "enum.rs"]
 mod r#enum;
-mod macros;
 mod map;
 mod optional;
 mod primitive;

rust/string.rs

@@ -13,7 +13,6 @@ use crate::__internal::Private;
 use crate::__runtime::{
     BytesAbsentMutData, BytesPresentMutData, InnerBytesMut, PtrAndLen, RawMessage,
 };
-use crate::macros::impl_forwarding_settable_value;
 use crate::{
     AbsentField, FieldEntry, Mut, MutProxied, MutProxy, Optional, PresentField, Proxied,
     ProxiedWithPresence, SettableValue, View, ViewProxy,

rust/upb.rs

@@ -10,7 +10,7 @@
 use crate::__internal::{Enum, Private};
 use crate::{
     Map, MapIter, MapMut, MapView, Mut, ProtoStr, Proxied, ProxiedInMapValue, ProxiedInRepeated,
-    Repeated, RepeatedMut, RepeatedView, SettableValue, View, ViewProxy,
+    Repeated, RepeatedMut, RepeatedView, View, ViewProxy,
 };
 use core::fmt::Debug;
 use std::alloc::Layout;