Remove unused import of Optional in load.py

Removed unused import statement for Optional.

Author: arshitas

app/etl/load.py

@@ -2,7 +2,6 @@
 import sqlite3
 import os
 # TODO (Find & Fix)
-from typing import Optional
 
 def load(df: pd.DataFrame, db_path: str = "etl_data.db", table_name: str = "processed_data"):
     """
@@ -68,4 +67,4 @@ def load(df: pd.DataFrame, db_path: str = "etl_data.db", table_name: str = "proc
             conn.rollback() 
     finally:
         if conn:
-            conn.close()
+            conn.close()