libcamera: pipeline: Rework class destructor

Remove comment and do not delete a class member, as it will be destroyed
already with the instance that contains it.

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/pipeline_handler.cpp

@@ -71,15 +71,8 @@ PipelineHandler::PipelineHandler(CameraManager *manager)
 {
 }
 
-/**
- * \brief Delete the pipeline handler
- *
- * Release the cameraData_ map, causing all data there referenced to be
- * deleted, as they are stored as unique_ptr<CameraData>
- */
 PipelineHandler::~PipelineHandler()
 {
-	cameraData_.clear();
 };
 
 /**