Rollup merge of #70187 - matthiaskrgr:cl2ppy, r=Mark-Simulacrum

more clippy fixes

    * remove redundant returns (clippy::needless_return)
    * remove redundant import (clippy::single_component_path_imports)
    * remove redundant format!() call (clippy::useless_format)
    * don't use ok() before calling expect() (clippy::ok_expect)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libcore/hint.rs b/src/libcore/hint.rs
index f4fb9ab1757..6cbd26a78de 100644
--- a/src/libcore/hint.rs
+++ b/src/libcore/hint.rs
@@ -114,6 +114,6 @@ pub fn black_box<T>(dummy: T) -> T {
     // more than we want, but it's so far good enough.
     unsafe {
         asm!("" : : "r"(&dummy));
-        return dummy;
+        dummy
     }
 }