Clean up unused struct fields (via structcheck linter)

container/docker/handler.go

@@ -48,16 +48,6 @@ type dockerContainerHandler struct {
 	aliases            []string
 	machineInfoFactory info.MachineInfoFactory
 
-	// Path to the libcontainer config file.
-	libcontainerConfigPath string
-
-	// Path to the libcontainer state file.
-	libcontainerStatePath string
-
-	// TODO(vmarmol): Remove when we depend on a newer Docker.
-	// Path to the libcontainer pid file.
-	libcontainerPidPath string
-
 	// Absolute path to the cgroup hierarchies of this container.
 	// (e.g.: "cpu" -> "/sys/fs/cgroup/cpu/test")
 	cgroupPaths map[string]string

events/handler.go

@@ -115,9 +115,6 @@ type watch struct {
 	request *Request
 	// a channel used to send event back to the caller.
 	eventChannel *EventChannel
-	// unique identifier of a watch that is used as a key in events' watchers
-	// map
-	id int
 }
 
 func NewEventChannel(watchId int) *EventChannel {

manager/manager.go

@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"os"
 	"path"
-	"regexp"
 	"strconv"
 	"strings"
 	"sync"
@@ -190,7 +189,6 @@ type manager struct {
 	quitChannels             []chan error
 	cadvisorContainer        string
 	inHostNamespace          bool
-	dockerContainersRegexp   *regexp.Regexp
 	loadReader               cpuload.CpuLoadReader
 	eventHandler             events.EventManager
 	startupTime              time.Time