chore: fix duplicated import in the example (#179)

shizhMSFT · web-flow · commit 6d7578a4e172 · 2023-12-13T12:57:20.000-08:00
Signed-off-by: Shiwei Zhang &lt;shizh@microsoft.com&gt;
diff --git a/example_test.go b/example_test.go
@@ -5,7 +5,6 @@ import (
 	"crypto/elliptic"
 	"crypto/rand"
 	"crypto/sha512"
-	_ "crypto/sha512"
 	"fmt"
 
 	"github.com/veraison/go-cose"
