Remove a bunch of stuff in //mojo

mojo/util/capture_util.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef MOJO_UTIL_CAPTURE_UTIL_H_
-#define MOJO_UTIL_CAPTURE_UTIL_H_
-
-#include <utility>
-
-#include "mojo/public/cpp/bindings/callback.h"
-
-namespace mojo {
-
-template <typename T1>
-mojo::Callback<void(T1)> Capture(T1* t1) {
-  return [t1](T1 got_t1) { *t1 = std::move(got_t1); };
-}
-
-template <typename T1, typename T2>
-mojo::Callback<void(T1, T2)> Capture(T1* t1, T2* t2) {
-  return [t1, t2](T1 got_t1, T2 got_t2) {
-    *t1 = std::move(got_t1);
-    *t2 = std::move(got_t2);
-  };
-}
-
-template <typename T1, typename T2, typename T3>
-mojo::Callback<void(T1, T2, T3)> Capture(T1* t1, T2* t2, T3* t3) {
-  return [t1, t2, t3](T1 got_t1, T2 got_t2, T3 got_t3) {
-    *t1 = std::move(got_t1);
-    *t2 = std::move(got_t2);
-    *t3 = std::move(got_t3);
-  };
-}
-
-}  // namespace mojo
-
-#endif  // MOJO_UTIL_CAPTURE_UTIL_H_