sys_util: errno: Make clippy clean

Fix one warning about unnecessary ref.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Change-Id: I4a01d9762866d8eb7ed661e6c06fe3722d008ec4
Reviewed-on: https://chromium-review.googlesource.com/1510067
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/sys_util/src/errno.rs b/sys_util/src/errno.rs
index 4643484..cf54aae 100644
--- a/sys_util/src/errno.rs
+++ b/sys_util/src/errno.rs
@@ -29,7 +29,7 @@ impl Error {
     }
 
     /// Gets the errno for this error
-    pub fn errno(&self) -> i32 {
+    pub fn errno(self) -> i32 {
         self.0
     }
 }