remove unused code

packages/camera/camera_android_camerax/lib/src/android_camera_camerax.dart

@@ -237,18 +237,6 @@ class AndroidCameraCameraX extends CameraPlatform {
   @visibleForTesting
   late bool cameraIsFrontFacing;
 
-  /// Whether or not the Surface used to create the camera preview is backed
-  /// by a SurfaceTexture.
-  @visibleForTesting
-  late bool isPreviewPreTransformed;
-
-  /// The initial orientation of the device.
-  ///
-  /// The camera preview will use this orientation as the natural orientation
-  /// to correct its rotation with respect to, if necessary.
-  @visibleForTesting
-  DeviceOrientation? naturalOrientation;
-
   /// The camera sensor orientation.
   @visibleForTesting
   late int sensorOrientation;
@@ -399,20 +387,7 @@ class AndroidCameraCameraX extends CameraPlatform {
 
     final Camera2CameraInfo camera2CameraInfo =
         await proxy.getCamera2CameraInfo(cameraInfo!);
-    await Future.wait(<Future<Object>>[
-      SystemServices.isPreviewPreTransformed()
-          .then((bool value) => isPreviewPreTransformed = value),
-      proxy
-          .getSensorOrientation(camera2CameraInfo)
-          .then((int value) => sensorOrientation = value),
-      proxy
-          .getUiOrientation()
-          .then((DeviceOrientation value) => naturalOrientation ??= value),
-    ]);
-    _subscriptionForDeviceOrientationChanges = onDeviceOrientationChanged()
-        .listen((DeviceOrientationChangedEvent event) {
-      currentDeviceOrientation = event.orientation;
-    });
+    sensorOrientation = await proxy.getSensorOrientation(camera2CameraInfo);
 
     return flutterSurfaceTextureId;
   }
@@ -866,67 +841,6 @@ class AndroidCameraCameraX extends CameraPlatform {
     }
 
     return Texture(textureId: cameraId);
-    // final Map<DeviceOrientation, int> degreesForDeviceOrientation =
-    //     <DeviceOrientation, int>{
-    //   DeviceOrientation.portraitUp: 0,
-    //   DeviceOrientation.landscapeRight: 90,
-    //   DeviceOrientation.portraitDown: 180,
-    //   DeviceOrientation.landscapeLeft: 270,
-    // };
-    // int naturalDeviceOrientationDegrees =
-    //     degreesForDeviceOrientation[naturalOrientation]!;
-
-    // if (isPreviewPreTransformed) {
-    //   // If the camera preview is backed by a SurfaceTexture, the transformation
-    //   // needed to correctly rotate the preview has already been applied.
-    //   // However, we may need to correct the camera preview rotation if the
-    //   // device is naturally landscape-oriented.
-    //   if (naturalOrientation == DeviceOrientation.landscapeLeft ||
-    //       naturalOrientation == DeviceOrientation.landscapeRight) {
-    //     final int quarterTurnsToCorrectForLandscape =
-    //         (-naturalDeviceOrientationDegrees + 360) ~/ 4;
-    //     return RotatedBox(
-    //         quarterTurns: quarterTurnsToCorrectForLandscape,
-    //         child: cameraPreview);
-    //   }
-    //   return cameraPreview;
-    // }
-
-    // // Fix for the rotation of the camera preview not backed by a SurfaceTexture
-    // // with respect to the naturalOrientation of the device:
-
-    // final int signForCameraDirection = cameraIsFrontFacing ? 1 : -1;
-
-    // if (signForCameraDirection == 1 &&
-    //     (currentDeviceOrientation == DeviceOrientation.landscapeLeft ||
-    //         currentDeviceOrientation == DeviceOrientation.landscapeRight)) {
-    //   // For front-facing cameras, the image buffer is rotated counterclockwise,
-    //   // so we determine the rotation needed to correct the camera preview with
-    //   // respect to the naturalOrientation of the device based on the inverse of
-    //   // naturalOrientation.
-    //   naturalDeviceOrientationDegrees += 180;
-    // }
-
-    // // See https://developer.android.com/media/camera/camera2/camera-preview#orientation_calculation
-    // // for more context on this formula.
-    // final double rotation = (sensorOrientation +
-    //         naturalDeviceOrientationDegrees * signForCameraDirection +
-    //         360) %
-    //     360;
-    // int quarterTurnsToCorrectPreview = rotation ~/ 90;
-
-    // if (naturalOrientation == DeviceOrientation.landscapeLeft ||
-    //     naturalOrientation == DeviceOrientation.landscapeRight) {
-    //   // We may need to correct the camera preview rotation if the device is
-    //   // naturally landscape-oriented.
-    //   quarterTurnsToCorrectPreview +=
-    //       (-naturalDeviceOrientationDegrees + 360) ~/ 4;
-    //   return RotatedBox(
-    //       quarterTurns: quarterTurnsToCorrectPreview, child: cameraPreview);
-    // }
-
-    // return RotatedBox(
-    //     quarterTurns: quarterTurnsToCorrectPreview, child: cameraPreview);
   }
 
   /// Captures an image and returns the file where it was saved.