Method remove_attribute

Source/ThirdParty/pugixml/pugixml.cpp:5257–5260

	}

	PUGI__FN bool xml_node::remove_attribute(const char_t* name_)
	{
		return remove_attribute(attribute(name_));
	}

	PUGI__FN bool xml_node::remove_attribute(const xml_attribute& a)
	{