Remove the milo/buildbot backfiller

appengine/cmd/milo/cmd/backfill/main.go

Index: appengine/cmd/milo/cmd/backfill/main.go
diff --git a/appengine/cmd/milo/cmd/backfill/main.go b/appengine/cmd/milo/cmd/backfill/main.go
index 1b352f3ad9b90fa94e8eb6149da6370c31ac17ac..91cf1cd504b06bfa687e7c39a8e930cc929e8baf 100644
--- a/appengine/cmd/milo/cmd/backfill/main.go
+++ b/appengine/cmd/milo/cmd/backfill/main.go
@@ -10,7 +10,6 @@ import (
 	"os"
 
 	"github.com/luci/gae/impl/prod"
-	"github.com/luci/luci-go/appengine/cmd/milo/collectors/buildbot"
 	"github.com/luci/luci-go/appengine/cmd/milo/collectors/git"
 	"github.com/luci/luci-go/appengine/cmd/milo/model"
 	log "github.com/luci/luci-go/common/logging"
@@ -26,7 +25,6 @@ var application = &subcommands.DefaultApplication{
 	Name:  "backfill",
 	Title: "Backfill Build and Revision data into the milo backend from various data sources.",
 	Commands: []*subcommands.Command{
-		buildBotCmd,
 		gitCmd,
 		subcommands.CmdHelp,
 	},
@@ -50,50 +48,6 @@ func (c *commandRunBase) Init() {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// Buildbot
-
-var buildBotCmd = &subcommands.Command{
-	UsageLine: "buildbot",
-	ShortDesc: "runs the buildbot backfiller",
-	LongDesc:  "Runs the buildbot backfiller. This hits chrome build extract, and uploads the data from that into the Cloud datastore, as backed by the remoteURL.",
-	CommandRun: func() subcommands.CommandRun {
-		c := &cmdBuildBotRun{}
-		c.Init()
-		c.Flags.StringVar(&c.master, "master", "chromium.win", "the master to upload data for")
-		c.Flags.BoolVar(&c.buildbotFallback, "buildbot-fallback", false, "if getting the data from CBE fails, get the json data directly from the buildbot master")
-		return c
-	},
-}
-
-type cmdBuildBotRun struct {
-	commandRunBase
-	master           string
-	buildbotFallback bool
-}
-
-func (c *cmdBuildBotRun) Run(a subcommands.Application, args []string) int {
-	cfg := gologger.LoggerConfig{
-		Format: "%{message}",
-		Out:    os.Stdout,
-	}
-	ctx := cfg.Use(context.Background())
-
-	err := prod.UseRemote(&ctx, c.remoteURL, nil)
-	if err != nil {
-		log.Errorf(ctx, "%s", err)
-		return 1
-	}
-
-	err = buildbot.PopulateMaster(ctx, c.master, c.dryRun, c.buildbotFallback)
-	if err != nil {
-		log.Errorf(ctx, "%s", err)
-		return 1
-	}
-
-	return 0
-}
-
-////////////////////////////////////////////////////////////////////////////////
 // Git
 
 var gitCmd = &subcommands.Command{