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/gl/types_prod.go

Index: third_party/go/src/golang.org/x/mobile/gl/types_prod.go
diff --git a/third_party/go/src/golang.org/x/mobile/gl/types_prod.go b/third_party/go/src/golang.org/x/mobile/gl/types_prod.go
deleted file mode 100644
index 5bed42dc83faf5e647eaa904ad56265bed247fb3..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/gl/types_prod.go
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright 2014 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 linux darwin
-// +build !gldebug
-
-package gl
-
-/*
-#ifdef os_linux
-#include <GLES2/gl2.h>
-#endif
-#ifdef os_darwin_arm
-#include <OpenGLES/ES2/gl.h>
-#endif
-#ifdef os_darwin_amd64
-#include <OpenGL/gl3.h>
-#endif
-*/
-import "C"
-import "fmt"
-
-// Enum is equivalent to GLenum, and is normally used with one of the
-// constants defined in this package.
-type Enum uint32
-
-// Types are defined a structs so that in debug mode they can carry
-// extra information, such as a string name. See typesdebug.go.
-
-// Attrib is an attribute index.
-type Attrib struct {
-	Value uint
-}
-
-// Program identifies a compiled shader program.
-type Program struct {
-	Value uint32
-}
-
-// Shader identifies a GLSL shader.
-type Shader struct {
-	Value uint32
-}
-
-// Buffer identifies a GL buffer object.
-type Buffer struct {
-	Value uint32
-}
-
-// Framebuffer identifies a GL framebuffer.
-type Framebuffer struct {
-	Value uint32
-}
-
-// A Renderbuffer is a GL object that holds an image in an internal format.
-type Renderbuffer struct {
-	Value uint32
-}
-
-// A Texture identifies a GL texture unit.
-type Texture struct {
-	Value uint32
-}
-
-// A Uniform identifies a GL uniform attribute value.
-type Uniform struct {
-	Value int32
-}
-
-func (v Attrib) c() C.GLuint       { return C.GLuint(v.Value) }
-func (v Enum) c() C.GLenum         { return C.GLenum(v) }
-func (v Program) c() C.GLuint      { return C.GLuint(v.Value) }
-func (v Shader) c() C.GLuint       { return C.GLuint(v.Value) }
-func (v Buffer) c() C.GLuint       { return C.GLuint(v.Value) }
-func (v Framebuffer) c() C.GLuint  { return C.GLuint(v.Value) }
-func (v Renderbuffer) c() C.GLuint { return C.GLuint(v.Value) }
-func (v Texture) c() C.GLuint      { return C.GLuint(v.Value) }
-func (v Uniform) c() C.GLint       { return C.GLint(v.Value) }
-
-func (v Attrib) String() string       { return fmt.Sprintf("Attrib(%d)", v) }
-func (v Program) String() string      { return fmt.Sprintf("Program(%d)", v.Value) }
-func (v Shader) String() string       { return fmt.Sprintf("Shader(%d)", v.Value) }
-func (v Buffer) String() string       { return fmt.Sprintf("Buffer(%d)", v.Value) }
-func (v Framebuffer) String() string  { return fmt.Sprintf("Framebuffer(%d)", v.Value) }
-func (v Renderbuffer) String() string { return fmt.Sprintf("Renderbuffer(%d)", v.Value) }
-func (v Texture) String() string      { return fmt.Sprintf("Texture(%d)", v.Value) }
-func (v Uniform) String() string      { return fmt.Sprintf("Uniform(%d)", v.Value) }