diff --git a/velox/serializers/PrestoSerializer.cpp b/velox/serializers/PrestoSerializer.cpp
index bd8593fbfc0b1..d505ea1371690 100644
--- a/velox/serializers/PrestoSerializer.cpp
+++ b/velox/serializers/PrestoSerializer.cpp
@@ -1178,21 +1178,11 @@ void readMapVectorStructNulls(
   valueCount(source, size, scratch);
 }
 
-void readTimestampWithTimeZoneStructNulls(
-    ByteInputStream* source,
-    Scratch& scratch) {
-  readStructNulls<int64_t>(source, BIGINT(), false, scratch);
-}
-
 void readRowVectorStructNulls(
     ByteInputStream* source,
     const TypePtr& type,
     bool useLosslessTimestamp,
     Scratch& scratch) {
-  if (isTimestampWithTimeZoneType(type)) {
-    readTimestampWithTimeZoneStructNulls(source, scratch);
-    return;
-  }
   auto streamPos = source->tellp();
   const int32_t numChildren = source->read<int32_t>();
   const auto& childTypes = type->asRow().children();