diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing/metadata.go b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing/metadata.go
index 38f251d..3649fb5 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing/metadata.go
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing/metadata.go
@@ -7,8 +7,6 @@
 	"encoding/base64"
 	"strings"
 
-	"fmt"
-
 	"google.golang.org/grpc/metadata"
 )
 
@@ -32,12 +30,8 @@
 func (m metadataTextMap) ForeachKey(callback func(key, val string) error) error {
 	for k, vv := range m {
 		for _, v := range vv {
-			if decodedKey, decodedVal, err := metadata.DecodeKeyValue(k, v); err == nil {
-				if err = callback(decodedKey, decodedVal); err != nil {
-					return err
-				}
-			} else {
-				return fmt.Errorf("failed decoding opentracing from gRPC metadata: %v", err)
+			if err := callback(k, v); err != nil {
+				return err
 			}
 		}
 	}