From 4e691587ef9c2fb3bea5f3451bccb2ac2a04f9c0 Mon Sep 17 00:00:00 2001
From: danielenricocahall <danielenricocahall@gmail.com>
Date: Sun, 4 Apr 2021 09:06:21 -0400
Subject: [PATCH] remove virtual inheritance from features2d

---
 modules/features2d/include/opencv2/features2d.hpp | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/modules/features2d/include/opencv2/features2d.hpp b/modules/features2d/include/opencv2/features2d.hpp
index 829d8ff898..80cde9ca5c 100644
--- a/modules/features2d/include/opencv2/features2d.hpp
+++ b/modules/features2d/include/opencv2/features2d.hpp
@@ -141,11 +141,7 @@ public:
 
 /** @brief Abstract base class for 2D image feature detectors and descriptor extractors
 */
-#ifdef __EMSCRIPTEN__
 class CV_EXPORTS_W Feature2D : public Algorithm
-#else
-class CV_EXPORTS_W Feature2D : public virtual Algorithm
-#endif
 {
 public:
     virtual ~Feature2D();