Revert of ShapeDetection: add support for Text Detection in Mac

services/shape_detection/text_detection_impl_mac.h

-// Copyright 2017 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 SERVICES_SHAPE_DETECTION_TEXT_DETECTION_IMPL_MAC_H_
-#define SERVICES_SHAPE_DETECTION_TEXT_DETECTION_IMPL_MAC_H_
-
-#include "base/mac/scoped_nsobject.h"
-#include "services/shape_detection/public/interfaces/textdetection.mojom.h"
-
-@class CIDetector;
-
-namespace shape_detection {
-
-class TextDetectionImplMac : public mojom::TextDetection {
- public:
-  TextDetectionImplMac();
-  ~TextDetectionImplMac() override;
-
-  void Detect(mojo::ScopedSharedBufferHandle frame_data,
-              uint32_t width,
-              uint32_t height,
-              const mojom::TextDetection::DetectCallback& callback) override;
-
- private:
-  base::scoped_nsobject<CIDetector> detector_;
-
-  DISALLOW_COPY_AND_ASSIGN(TextDetectionImplMac);
-};
-
-}  // namespace shape_detection
-
-#endif  // SERVICES_SHAPE_DETECTION_TEXT_DETECTION_IMPL_MAC_H_