clenaup: delete unused function getEnv

Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>

daemon/execdriver/lxc/init.go

@@ -141,13 +141,3 @@ func setupWorkingDirectory(args *InitArgs) error {
 	}
 	return nil
 }
-
-func getEnv(args *InitArgs, key string) string {
-	for _, kv := range args.Env {
-		parts := strings.SplitN(kv, "=", 2)
-		if parts[0] == key && len(parts) == 2 {
-			return parts[1]
-		}
-	}
-	return ""
-}

daemon/execdriver/native/driver.go

@@ -8,7 +8,6 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"strings"
 	"sync"
 	"syscall"
 	"time"
@@ -349,16 +348,6 @@ func (d *driver) Stats(id string) (*execdriver.ResourceStats, error) {
 	}, nil
 }
 
-func getEnv(key string, env []string) string {
-	for _, pair := range env {
-		parts := strings.Split(pair, "=")
-		if parts[0] == key {
-			return parts[1]
-		}
-	}
-	return ""
-}
-
 type TtyConsole struct {
 	console libcontainer.Console
 }