windows: drop arm

Fixes golang/go#71671

Change-Id: Id1d0a9c9bc1c33dbe28c14e2f7c4adb3ede2b3f9
Reviewed-on: https://go-review.googlesource.com/c/sys/+/690655
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
diff --git a/windows/types_windows_arm.go b/windows/types_windows_arm.go
deleted file mode 100644
index 321872c..0000000
--- a/windows/types_windows_arm.go
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2018 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.
-
-package windows
-
-type WSAData struct {
-	Version      uint16
-	HighVersion  uint16
-	Description  [WSADESCRIPTION_LEN + 1]byte
-	SystemStatus [WSASYS_STATUS_LEN + 1]byte
-	MaxSockets   uint16
-	MaxUdpDg     uint16
-	VendorInfo   *byte
-}
-
-type Servent struct {
-	Name    *byte
-	Aliases **byte
-	Port    uint16
-	Proto   *byte
-}
-
-type JOBOBJECT_BASIC_LIMIT_INFORMATION struct {
-	PerProcessUserTimeLimit int64
-	PerJobUserTimeLimit     int64
-	LimitFlags              uint32
-	MinimumWorkingSetSize   uintptr
-	MaximumWorkingSetSize   uintptr
-	ActiveProcessLimit      uint32
-	Affinity                uintptr
-	PriorityClass           uint32
-	SchedulingClass         uint32
-	_                       uint32 // pad to 8 byte boundary
-}