Revert "time: zoneinfo support on darwin/arm"

This reverts commit 54efdc596f.

Broken on darwin.

Change-Id: Ic74275f36d30975263340e2b4045226eae71b16a
Reviewed-on: https://go-review.googlesource.com/6514
Reviewed-by: David Crawshaw <crawshaw@golang.org>

src/time/sleep_test.go

@@ -383,10 +383,6 @@ func TestOverflowSleep(t *testing.T) {
 // Test that a panic while deleting a timer does not leave
 // the timers mutex held, deadlocking a ticker.Stop in a defer.
 func TestIssue5745(t *testing.T) {
-	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm" {
-		t.Skipf("skipping on %s/%s, see issue 10043", runtime.GOOS, runtime.GOARCH)
-	}
-
 	ticker := NewTicker(Hour)
 	defer func() {
 		// would deadlock here before the fix due to

src/time/zoneinfo_darwin_armx.go

@@ -1,51 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin
-// +build arm arm64
-
-package time
-
-import "syscall"
-
-var zoneFile string
-
-func init() {
-	wd, err := syscall.Getwd()
-	if err != nil {
-		return
-	}
-
-	// The working directory at initialization is the root of the
-	// app bundle: "/private/.../bundlename.app". That's where we
-	// keep zoneinfo.zip.
-	zoneFile = wd + "/zoneinfo.zip"
-}
-
-func forceZipFileForTesting(zipOnly bool) {
-	// On iOS we only have the zip file.
-}
-
-func initTestingZone() {
-	z, err := loadZoneFile(zoneFile, "America/Los_Angeles")
-	if err != nil {
-		panic("cannot load America/Los_Angeles for testing: " + err.Error())
-	}
-	z.name = "Local"
-	localLoc = *z
-}
-
-func initLocal() {
-	// TODO(crawshaw): [NSTimeZone localTimeZone]
-	localLoc = *UTC
-}
-
-func loadLocation(name string) (*Location, error) {
-	z, err := loadZoneFile(zoneFile, name)
-	if err != nil {
-		return nil, err
-	}
-	z.name = name
-	return z, nil
-}

src/time/zoneinfo_unix.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin,!arm,!arm64 dragonfly freebsd linux nacl netbsd openbsd solaris
+// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
 
 // Parse "zoneinfo" time zone file.
 // This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.