[PATCH 3/3] samples: rust: remove imports available via prelude

[Gary Guo <gary@garyguo.net>]

These imports are already in scope by importing `kernel::prelude::*` and
does not need to be imported separately.

Signed-off-by: Gary Guo <gary@garyguo.net>
---
 samples/rust/rust_driver_auxiliary.rs | 1 -
 samples/rust/rust_misc_device.rs      | 2 --
 samples/rust/rust_print_main.rs       | 2 +-
 3 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs
index f148124fe81f..84c2b1045701 100644
--- a/samples/rust/rust_driver_auxiliary.rs
+++ b/samples/rust/rust_driver_auxiliary.rs
@@ -18,7 +18,6 @@
 };
 
 use core::any::TypeId;
-use pin_init::PinInit;
 
 const MODULE_NAME: &CStr = <LocalModule as kernel::ModuleMetadata>::NAME;
 const AUXILIARY_NAME: &CStr = c"auxiliary";
diff --git a/samples/rust/rust_misc_device.rs b/samples/rust/rust_misc_device.rs
index 49dd5814e1ab..87a1fe63533a 100644
--- a/samples/rust/rust_misc_device.rs
+++ b/samples/rust/rust_misc_device.rs
@@ -95,8 +95,6 @@
 //! }
 //! ```
 
-use core::pin::Pin;
-
 use kernel::{
     device::Device,
     fs::{File, Kiocb},
diff --git a/samples/rust/rust_print_main.rs b/samples/rust/rust_print_main.rs
index 4095c72afeab..682207c81fc2 100644
--- a/samples/rust/rust_print_main.rs
+++ b/samples/rust/rust_print_main.rs
@@ -101,7 +101,7 @@ fn drop(&mut self) {
 }
 
 mod trace {
-    use kernel::ffi::c_int;
+    use kernel::prelude::*;
 
     kernel::declare_trace! {
         /// # Safety
-- 
2.51.2