Revert "Update Doc/library/sqlite3.rst"

This reverts commit 0e0398d.

Doc/library/sqlite3.rst

@@ -105,8 +105,7 @@ assign the result to ``res``,
 and call :meth:`res.fetchone() <Cursor.fetchone>` to fetch the resulting row::
 
    >>> res = cur.execute("SELECT name FROM sqlite_master")
-   >>> res.fetchone() is None
-   True
+   >>> res.fetchone()
    ('movie',)
 
 We can see that the table has been created,