Update bulidbucket client

client/cmd/buildbucket/cancel.go

Index: client/cmd/buildbucket/cancel.go
diff --git a/client/cmd/buildbucket/cancel.go b/client/cmd/buildbucket/cancel.go
deleted file mode 100644
index daf3ef0055e5954bec4a34623b4be5c3a2935027..0000000000000000000000000000000000000000
--- a/client/cmd/buildbucket/cancel.go
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2016 The LUCI Authors. All rights reserved.
-// Use of this source code is governed under the Apache License, Version 2.0
-// that can be found in the LICENSE file.
-
-package main
-
-import (
-	"fmt"
-	"strconv"
-
-	"github.com/maruel/subcommands"
-
-	"github.com/luci/luci-go/common/cli"
-	"github.com/luci/luci-go/common/logging"
-)
-
-var cmdCancel = &subcommands.Command{
-	UsageLine: `cancel [flags] <build id>`,
-	ShortDesc: "Cancel a build",
-	LongDesc:  "Attempt to cancel an existing build.",
-	CommandRun: func() subcommands.CommandRun {
-		c := &cancelRun{}
-		c.SetDefaultFlags()
-		return c
-	},
-}
-
-type cancelRun struct {
-	baseCommandRun
-}
-
-func (r *cancelRun) Run(a subcommands.Application, args []string) int {
-	ctx := cli.GetContext(a, r)
-	if len(args) < 1 {
-		logging.Errorf(ctx, "missing parameter: <Build ID>")
-		return 1
-	} else if len(args) > 1 {
-		logging.Errorf(ctx, "unexpected arguments: %s", args[1:])
-	}
-
-	buildId, err := strconv.ParseInt(args[0], 10, 64)
-	if err != nil {
-		logging.Errorf(ctx, "expected a build id (int64): %s", err)
-		return 1
-	}
-
-	service, err := r.makeService(ctx, a)
-	if err != nil {
-		return 1
-	}
-
-	response, err := service.Cancel(buildId).Do()
-	if err != nil {
-		logging.Errorf(ctx, "buildbucket.Cancel failed: %s", err)
-		return 1
-	}
-
-	responseJSON, err := response.MarshalJSON()
-	if err != nil {
-		logging.Errorf(ctx, "could not unmarshal response: %s", err)
-		return 1
-	}
-
-	fmt.Println(string(responseJSON))
-	return 0
-}