remove unneeded logging (#798)

Co-authored-by: Sung Won Chung <[email protected]>

Author: sungchun12

data_diff/joindiff_tables.py

@@ -343,7 +343,6 @@ def _count_diff_per_column(
         table1: Optional[TableSegment] = None,
         table2: Optional[TableSegment] = None,
     ):
-        logger.info(type(table1))
         logger.debug(f"Counting differences per column: {table1.table_path} <> {table2.table_path}")
         is_diff_cols_counts = db.query(
             diff_rows.select(sum_(this[c]) for c in is_diff_cols),