[3.9] gh-91708: Revert params note in urllib.parse.urlparse table (GH-96699) (#98054)

Revert params note in urllib.parse.urlparse table
(cherry picked from commit eed80458)

Co-authored-by: Stanley <46876382+slateny@users.noreply.github.com>

Doc/library/urllib.parse.rst

@@ -113,7 +113,8 @@ or on combining URL components into a URL string.
    +------------------+-------+-------------------------+------------------------+
    | :attr:`path`     | 2     | Hierarchical path       | empty string           |
    +------------------+-------+-------------------------+------------------------+
-   | :attr:`params`   | 3     | No longer used          | always an empty string |
+   | :attr:`params`   | 3     | Parameters for last     | empty string           |
+   |                  |       | path element            |                        |
    +------------------+-------+-------------------------+------------------------+
    | :attr:`query`    | 4     | Query component         | empty string           |
    +------------------+-------+-------------------------+------------------------+