remove duplicate function

Author: jonasjucker

db.py

@@ -23,34 +23,6 @@ def _get_db_connection(self):
                                       cursor_factory=DictCursor)
         return connection
 
-    def _create_tables(self):
-        connection = self._get_db_connection()
-        try:
-            with connection.cursor() as cursor:
-                cursor.execute(f"""
-                    CREATE TABLE IF NOT EXISTS activity_{self._table_suffix} (
-                        id SERIAL PRIMARY KEY,
-                        activity_type VARCHAR(50) NOT NULL,
-                        user_id VARCHAR(50) NOT NULL,
-                        station TEXT,
-                        timestamp TIMESTAMP NOT NULL
-                    )
-                """)
-
-                # subscriptions table
-                cursor.execute(f"""
-                    CREATE TABLE IF NOT EXISTS subscriptions_{self._table_suffix} (
-                        id SERIAL PRIMARY KEY,
-                        station TEXT NOT NULL,
-                        user_id VARCHAR(50) NOT NULL
-                    )
-                """)
-            connection.commit()
-        except Exception as e:
-            logger.error(f"{e} while creating tables")
-        finally:
-            connection.close()
-
     def _create_tables(self):
         connection = self._get_db_connection()
         try: