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/bind/bind.go

-// 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.
-
-// Package bind implements a code generator for gobind.
-//
-// See the documentation on the gobind command for usage details.
-package bind // import "golang.org/x/mobile/bind"
-
-// TODO(crawshaw): slice support
-// TODO(crawshaw): channel support
-
-import (
-        "bytes"
-        "go/format"
-        "go/token"
-        "io"
-
-        "golang.org/x/tools/go/types"
-)
-
-// GenJava generates a Java API from a Go package.
-func GenJava(w io.Writer, fset *token.FileSet, pkg *types.Package) error {
-        buf := new(bytes.Buffer)
-        g := &javaGen{
-                printer: &printer{buf: buf, indentEach: []byte("    ")},
-                fset:    fset,
-                pkg:     pkg,
-        }
-        if err := g.gen(); err != nil {
-                return err
-        }
-        _, err := io.Copy(w, buf)
-        return err
-}
-
-// GenGo generates a Go stub to support foreign language APIs.
-func GenGo(w io.Writer, fset *token.FileSet, pkg *types.Package) error {
-        buf := new(bytes.Buffer)
-        g := &goGen{
-                printer: &printer{buf: buf, indentEach: []byte("\t")},
-                fset:    fset,
-                pkg:     pkg,
-        }
-        if err := g.gen(); err != nil {
-                return err
-        }
-        src := buf.Bytes()
-        srcf, err := format.Source(src)
-        if err != nil {
-                w.Write(src) // for debugging
-                return err
-        }
-        _, err = w.Write(srcf)
-        return err
-}