Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/app/darwin_arm.go

Index: third_party/go/src/golang.org/x/mobile/app/darwin_arm.go
diff --git a/third_party/go/src/golang.org/x/mobile/app/darwin_arm.go b/third_party/go/src/golang.org/x/mobile/app/darwin_arm.go
deleted file mode 100644
index 335fc3234825027de85d0e63f0adb653c5629df6..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/app/darwin_arm.go
+++ /dev/null
@@ -1,144 +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
-
-package app
-
-/*
-#cgo CFLAGS: -x objective-c
-#cgo LDFLAGS: -framework Foundation -framework UIKit -framework GLKit -framework OpenGLES -framework QuartzCore
-#include <sys/utsname.h>
-#include <stdint.h>
-#include <pthread.h>
-
-extern struct utsname sysInfo;
-
-void runApp(void);
-void setContext(void* context);
-uint64_t threadID();
-*/
-import "C"
-import (
-	"log"
-	"runtime"
-	"sync"
-	"unsafe"
-
-	"golang.org/x/mobile/geom"
-	"golang.org/x/mobile/gl"
-)
-
-var initThreadID uint64
-
-func init() {
-	// Lock the goroutine responsible for initialization to an OS thread.
-	// This means the goroutine running main (and calling the run function
-	// below) is locked to the OS thread that started the program. This is
-	// necessary for the correct delivery of UIKit events to the process.
-	//
-	// A discussion on this topic:
-	// https://groups.google.com/forum/#!msg/golang-nuts/IiWZ2hUuLDA/SNKYYZBelsYJ
-	runtime.LockOSThread()
-	initThreadID = uint64(C.threadID())
-}
-
-func run(callbacks Callbacks) {
-	if tid := uint64(C.threadID()); tid != initThreadID {
-		log.Fatalf("app.Run called on thread %d, but app.init ran on %d", tid, initThreadID)
-	}
-	cb = callbacks
-	C.runApp()
-}
-
-// TODO(crawshaw): determine minimum iOS version and remove irrelevant devices.
-var machinePPI = map[string]int{
-	"i386":      163, // simulator
-	"x86_64":    163, // simulator
-	"iPod1,1":   163, // iPod Touch gen1
-	"iPod2,1":   163, // iPod Touch gen2
-	"iPod3,1":   163, // iPod Touch gen3
-	"iPod4,1":   326, // iPod Touch gen4
-	"iPod5,1":   326, // iPod Touch gen5
-	"iPhone1,1": 163, // iPhone
-	"iPhone1,2": 163, // iPhone 3G
-	"iPhone2,1": 163, // iPhone 3GS
-	"iPad1,1":   132, // iPad gen1
-	"iPad2,1":   132, // iPad gen2
-	"iPad2,2":   132, // iPad gen2 GSM
-	"iPad2,3":   132, // iPad gen2 CDMA
-	"iPad2,4":   132, // iPad gen2
-	"iPad2,5":   163, // iPad Mini gen1
-	"iPad2,6":   163, // iPad Mini gen1 AT&T
-	"iPad2,7":   163, // iPad Mini gen1 VZ
-	"iPad3,1":   264, // iPad gen3
-	"iPad3,2":   264, // iPad gen3 VZ
-	"iPad3,3":   264, // iPad gen3 AT&T
-	"iPad3,4":   264, // iPad gen4
-	"iPad3,5":   264, // iPad gen4 AT&T
-	"iPad3,6":   264, // iPad gen4 VZ
-	"iPad4,1":   264, // iPad Air wifi
-	"iPad4,2":   264, // iPad Air LTE
-	"iPad4,3":   264, // iPad Air LTE China
-	"iPad4,4":   326, // iPad Mini gen2 wifi
-	"iPad4,5":   326, // iPad Mini gen2 LTE
-	"iPhone3,1": 326, // iPhone 4
-	"iPhone4,1": 326, // iPhone 4S
-	"iPhone5,1": 326, // iPhone 5
-	"iPhone5,2": 326, // iPhone 5
-	"iPhone5,3": 326, // iPhone 5c
-	"iPhone5,4": 326, // iPhone 5c
-	"iPhone6,1": 326, // iPhone 5s
-	"iPhone6,2": 326, // iPhone 5s
-	"iPhone7,1": 401, // iPhone 6 Plus
-	"iPhone7,2": 326, // iPhone 6
-}
-
-func ppi() int {
-	// TODO(crawshaw): use lookup table to get the correct PPI.
-	//C.uname(&C.sysInfo)
-	//machine := C.GoString(C.sysInfo.machine)
-	//return machinePPI[machine]
-	return 326
-}
-
-//export setGeom
-func setGeom(width, height int) {
-	geom.PixelsPerPt = float32(ppi()) / 72
-	geom.Width = geom.Pt(float32(width) / geom.PixelsPerPt)
-	geom.Height = geom.Pt(float32(height) / geom.PixelsPerPt)
-}
-
-func initGL() {
-}
-
-var cb Callbacks
-var initGLOnce sync.Once
-
-//export drawgl
-func drawgl(ctx uintptr) {
-	// The call to lockContext loads the OpenGL context into
-	// thread-local storage for use by the underlying GL calls
-	// done in the user's Draw function. We need to stay on
-	// the same thread throughout Draw, so we LockOSThread.
-	runtime.LockOSThread()
-	C.setContext(unsafe.Pointer(ctx))
-
-	initGLOnce.Do(initGL)
-
-	// TODO not here?
-	gl.ClearColor(0, 0, 0, 1)
-	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
-	if cb.Draw != nil {
-		cb.Draw()
-	}
-
-	// TODO
-	//C.unlockContext(ctx)
-
-	// This may unlock the original main thread, but that's OK,
-	// because by the time it does the thread has already entered
-	// C.runApp, which won't give the thread up.
-	runtime.UnlockOSThread()
-}