fix test

Author: sfc-gh-yuwang

src/snowflake/snowpark/_internal/type_utils.py

@@ -107,8 +107,6 @@
     except ImportError:
         ResultMetadataV2 = ResultMetadata
 
-_ICEBERG_MAX_STRING_SIZE = 134217728
-
 
 def convert_metadata_to_sp_type(
     metadata: Union[ResultMetadata, "ResultMetadataV2"],
@@ -346,7 +344,7 @@ def convert_sp_to_sf_type(
     # a dataframe from local data with all None values
     if isinstance(datatype, StringType):
         if is_iceberg:
-            return f"STRING({_ICEBERG_MAX_STRING_SIZE})"
+            return "STRING()"
         if datatype.length:
             return f"STRING({datatype.length})"
         return "STRING"