quickly corrected the previous refactoring of features2d: moved from set(SOME_PROP, val) to setSomeProp(val)

modules/core/src/algorithm.cpp

@@ -179,9 +179,6 @@ String Algorithm::name() const
     return info()->name();
 }
 
-void Algorithm::set(int, double) {}
-double Algorithm::get(int) const { return 0.; }
-
 void Algorithm::set(const String& parameter, int value)
 {
     info()->set(this, parameter.c_str(), ParamType<int>::type, &value);