fix(build.go): remove outdated comment

Author: Aaron Schlesinger

pkg/gitreceive/build.go

@@ -91,7 +91,7 @@ func build(conf *Config, builderKey, gitSha string) error {
 	// this is where workflow tells slugrunner to download the slug from, so we have to tell slugbuilder to upload it to here
 	pushURL := fmt.Sprintf("%s://%s:%s/git/home/%s/push", storage.schema(), storage.host(), storage.port(), fmt.Sprintf("%s:git-%s", appName, gitSha))
 
-	// Ensure that the app config can be gotten from workflow. We don't do anything with this information
+	// Get the application config from the controller, so we can check for a custom buildpack URL
 	appConf, err := getAppConfig(conf, builderKey, conf.Username, appName)
 	if err != nil {
 		return fmt.Errorf("getting app config for %s (%s)", appName, err)