Merge pull request #21937 from Kumataro:4.x-fix-21911

* Fix warnings for clang15

* Fix warnings: Remove unnecessary code

* Fix warnings: Remove unnecessary code

modules/features2d/src/evaluation.cpp

@@ -315,6 +315,8 @@ struct SIdx
         const SIdx& used;
         bool operator()(const SIdx& v) const { return  (v.i1 == used.i1 || v.i2 == used.i2); }
         UsedFinder& operator=(const UsedFinder&) = delete;
+        // To avoid -Wdeprecated-copy warning, copy constructor is needed.
+        UsedFinder(const UsedFinder&) = default;
     };
 };