[VOL-5486] Upgrade library versions

Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/go-redis/redis/v8/internal/util.go b/vendor/github.com/go-redis/redis/v8/internal/util.go
index 894382b..e34a7f0 100644
--- a/vendor/github.com/go-redis/redis/v8/internal/util.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/util.go
@@ -4,24 +4,19 @@
 	"context"
 	"time"
 
-	"github.com/go-redis/redis/v8/internal/proto"
 	"github.com/go-redis/redis/v8/internal/util"
-	"go.opentelemetry.io/otel/api/global"
-	"go.opentelemetry.io/otel/api/trace"
 )
 
 func Sleep(ctx context.Context, dur time.Duration) error {
-	return WithSpan(ctx, "time.Sleep", func(ctx context.Context, span trace.Span) error {
-		t := time.NewTimer(dur)
-		defer t.Stop()
+	t := time.NewTimer(dur)
+	defer t.Stop()
 
-		select {
-		case <-t.C:
-			return nil
-		case <-ctx.Done():
-			return ctx.Err()
-		}
-	})
+	select {
+	case <-t.C:
+		return nil
+	case <-ctx.Done():
+		return ctx.Err()
+	}
 }
 
 func ToLower(s string) string {
@@ -49,33 +44,3 @@
 	}
 	return true
 }
-
-func Unwrap(err error) error {
-	u, ok := err.(interface {
-		Unwrap() error
-	})
-	if !ok {
-		return nil
-	}
-	return u.Unwrap()
-}
-
-//------------------------------------------------------------------------------
-
-func WithSpan(ctx context.Context, name string, fn func(context.Context, trace.Span) error) error {
-	if span := trace.SpanFromContext(ctx); !span.IsRecording() {
-		return fn(ctx, span)
-	}
-
-	ctx, span := global.Tracer("github.com/go-redis/redis").Start(ctx, name)
-	defer span.End()
-
-	return fn(ctx, span)
-}
-
-func RecordError(ctx context.Context, err error) error {
-	if err != proto.Nil {
-		trace.SpanFromContext(ctx).RecordError(ctx, err)
-	}
-	return err
-}