io/fs: remove darwin/arm64 special condition

It isn't necessary on darwin/arm64 (macOS).

It was probably leftover from the old code when darwin/arm64
meant iOS. The test passes on iOS builder. Apparently this is
not needed either. Remove.

Change-Id: I6fa0c55d6086325d4b722862c4fe6c30bcd6e6e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/280158
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/src/io/fs/walk_test.go b/src/io/fs/walk_test.go
index 395471e2e8a5bf15e2b4dfb50299acac95135813..ebc4e50fb319deaa05241ab84a04266742a0d08e 100644 (file)
--- a/src/io/fs/walk_test.go
+++ b/src/io/fs/walk_test.go
@@ -9,7 +9,6 @@ import (
        "io/ioutil"
        "os"
        pathpkg "path"
-       "runtime"
        "testing"
        "testing/fstest"
 )
@@ -96,32 +95,7 @@ func mark(entry DirEntry, err error, errors *[]error, clear bool) error {
        return nil
 }
 
-func chtmpdir(t *testing.T) (restore func()) {
-       oldwd, err := os.Getwd()
-       if err != nil {
-               t.Fatalf("chtmpdir: %v", err)
-       }
-       d, err := ioutil.TempDir("", "test")
-       if err != nil {
-               t.Fatalf("chtmpdir: %v", err)
-       }
-       if err := os.Chdir(d); err != nil {
-               t.Fatalf("chtmpdir: %v", err)
-       }
-       return func() {
-               if err := os.Chdir(oldwd); err != nil {
-                       t.Fatalf("chtmpdir: %v", err)
-               }
-               os.RemoveAll(d)
-       }
-}
-
 func TestWalkDir(t *testing.T) {
-       if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
-               restore := chtmpdir(t)
-               defer restore()
-       }
-
        tmpDir, err := ioutil.TempDir("", "TestWalk")
        if err != nil {
                t.Fatal("creating temp dir:", err)