From c47b0699ebb66bcb0b0d2c8d641521206cb5d849 Mon Sep 17 00:00:00 2001
From: Akihiro Suda <suda.kyoto@gmail.com>
Date: Thu, 14 Apr 2016 07:04:00 +0000
Subject: [PATCH] Clean up unused code

Signed-off-by: Akihiro Suda <suda.kyoto@gmail.com>
Upstream-commit: d231260868507174d60ff58b18b14fa5bc2d5b66
Component: engine
---
 components/engine/container/container.go  | 20 -----------------
 components/engine/image/compat_unix.go    | 13 -----------
 components/engine/image/compat_windows.go | 27 -----------------------
 components/engine/volume/local/local.go   |  3 +--
 4 files changed, 1 insertion(+), 62 deletions(-)
 delete mode 100644 components/engine/image/compat_unix.go
 delete mode 100644 components/engine/image/compat_windows.go

diff --git a/components/engine/container/container.go b/components/engine/container/container.go
index cae0eceee2..e658c4b4dd 100644
--- a/components/engine/container/container.go
+++ b/components/engine/container/container.go
@@ -523,26 +523,6 @@ func (container *Container) ShouldRestart() bool {
 	return shouldRestart
 }
 
-// AddBindMountPoint adds a new bind mount point configuration to the container.
-func (container *Container) AddBindMountPoint(name, source, destination string, rw bool) {
-	container.MountPoints[destination] = &volume.MountPoint{
-		Name:        name,
-		Source:      source,
-		Destination: destination,
-		RW:          rw,
-	}
-}
-
-// AddLocalMountPoint adds a new local mount point configuration to the container.
-func (container *Container) AddLocalMountPoint(name, destination string, rw bool) {
-	container.MountPoints[destination] = &volume.MountPoint{
-		Name:        name,
-		Driver:      volume.DefaultDriverName,
-		Destination: destination,
-		RW:          rw,
-	}
-}
-
 // AddMountPointWithVolume adds a new mount point configured with a volume to the container.
 func (container *Container) AddMountPointWithVolume(destination string, vol volume.Volume, rw bool) {
 	container.MountPoints[destination] = &volume.MountPoint{
diff --git a/components/engine/image/compat_unix.go b/components/engine/image/compat_unix.go
deleted file mode 100644
index ba5d6a0937..0000000000
--- a/components/engine/image/compat_unix.go
+++ /dev/null
@@ -1,13 +0,0 @@
-// +build !windows
-
-package image
-
-func getOSVersion() string {
-	// For Linux, images do not specify a version.
-	return ""
-}
-
-func hasOSFeature(_ string) bool {
-	// Linux currently has no OS features
-	return false
-}
diff --git a/components/engine/image/compat_windows.go b/components/engine/image/compat_windows.go
deleted file mode 100644
index a8d488b0df..0000000000
--- a/components/engine/image/compat_windows.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package image
-
-import (
-	"fmt"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-// Windows OS features
-const (
-	FeatureWin32k = "win32k" // The kernel windowing stack is required
-)
-
-func getOSVersion() string {
-	v := system.GetOSVersion()
-	return fmt.Sprintf("%d.%d.%d", v.MajorVersion, v.MinorVersion, v.Build)
-}
-
-func hasOSFeature(f string) bool {
-	switch f {
-	case FeatureWin32k:
-		return system.HasWin32KSupport()
-	default:
-		// Unrecognized feature.
-		return false
-	}
-}
diff --git a/components/engine/volume/local/local.go b/components/engine/volume/local/local.go
index 0bca731a29..59a86329b7 100644
--- a/components/engine/volume/local/local.go
+++ b/components/engine/volume/local/local.go
@@ -258,8 +258,7 @@ func (r *Root) validateName(name string) error {
 // localVolume implements the Volume interface from the volume package and
 // represents the volumes created by Root.
 type localVolume struct {
-	m         sync.Mutex
-	usedCount int
+	m sync.Mutex
 	// unique name of the volume
 	name string
 	// path is the path on the host where the data lives