Update godep in vendor

vendor/github.com/tools/godep/util.go

@@ -1,35 +1,11 @@
 package main
 
 import (
-	"fmt"
-	"os/exec"
 	"path/filepath"
 	"runtime"
 	"strings"
 )
 
-// Runs a command in dir.
-// The name and args are as in exec.Command.
-// Stdout, stderr, and the environment are inherited
-// from the current process.
-func runIn(dir, name string, args ...string) error {
-	_, err := runInWithOutput(dir, name, args...)
-	return err
-}
-
-func runInWithOutput(dir, name string, args ...string) (string, error) {
-	c := exec.Command(name, args...)
-	c.Dir = dir
-	o, err := c.CombinedOutput()
-
-	if debug {
-		fmt.Printf("execute: %+v\n", c)
-		fmt.Printf(" output: %s\n", string(o))
-	}
-
-	return string(o), err
-}
-
 // driveLetterToUpper converts Windows path's drive letters to uppercase. This
 // is needed when comparing 2 paths with different drive letter case.
 func driveLetterToUpper(path string) string {