Update node_data.cpp

Author: TheRealFirst

src/node_data.cpp

@@ -13,7 +13,7 @@
 
 namespace YAML {
 namespace detail {
-YAML_CPP_API std::atomic<size_t> node::m_amount{0};
+// std::atomic<size_t> node::m_amount{0};
 
 const std::string& node_data::empty_scalar() {
   static const std::string svalue;