chore: drop unnecessary scheduler-docker-cleanup hook

All the logic was already called from docker-cleanup, so this just lengthened the cleanup time.

plugins/common/docker.go

@@ -186,20 +186,10 @@ func DockerCleanup(appName string, forceCleanup bool) error {
 	}
 
 	LogInfo1("Cleaning up...")
-	scheduler := GetAppScheduler(appName)
 	if appName == "--global" {
 		appName = ""
 	}
 
-	forceCleanupArg := "false"
-	if forceCleanup {
-		forceCleanupArg = "true"
-	}
-
-	if err := PlugnTrigger("scheduler-docker-cleanup", []string{scheduler, appName, forceCleanupArg}...); err != nil {
-		return fmt.Errorf("Failure while cleaning up app: %s", err)
-	}
-
 	// delete all non-running and dead containers
 	exitedContainerIDs, _ := listContainers("exited", appName)
 	deadContainerIDs, _ := listContainers("dead", appName)