Remove undocumented accept() functions

src/ArduinoJson/Variant/VariantFunctions.hpp

@@ -11,6 +11,15 @@
 
 namespace ARDUINOJSON_NAMESPACE {
 
+template <typename TVisitor>
+inline typename TVisitor::result_type variantAccept(const VariantData *var,
+                                                    TVisitor &visitor) {
+  if (var != 0)
+    return var->resolve()->accept(visitor);
+  else
+    return visitor.visitNull();
+}
+
 inline const CollectionData *variantAsArray(const VariantData *var) {
   return var != 0 ? var->resolve()->asArray() : 0;
 }