Fix stacks not drawing a frame even if requested

src/dialogxml/widgets/stack.cpp

@@ -55,7 +55,7 @@ void cStack::draw() {
 	for(auto& p : controls) {
 		p.second->draw();
 	}
-	if(drawFramed) drawFrame(2, frameStyle);
+	drawFrame(2, frameStyle);
 }
 
 bool cStack::setPage(size_t n) {

src/dialogxml/widgets/stack.hpp

@@ -37,7 +37,6 @@ class cStack : public cContainer {
 	std::string clicking;
 	std::vector<std::map<std::string,storage_t>> storage;
 	std::map<std::string,cControl*> controls;
-	bool drawFramed = false;
 	bool manageFormat(eFormat prop, bool set, boost::any* val) override;
 	std::vector<std::vector<std::string>> templates;
 	std::map<std::string, size_t> templateNames;