docs: removed mention of readline in tutorial as it is deprecated

Author: Yuheng3107

Doc/tutorial/interpreter.rst

@@ -33,16 +33,6 @@ Windows) at the primary prompt causes the interpreter to exit with a zero exit
 status.  If that doesn't work, you can exit the interpreter by typing the
 following command: ``quit()``.
 
-The interpreter's line-editing features include interactive editing, history
-substitution and code completion on systems that support the `GNU Readline
-<https://tiswww.case.edu/php/chet/readline/rltop.html>`_ library.
-Perhaps the quickest check to see whether command line editing is supported is
-typing :kbd:`Control-P` to the first Python prompt you get.  If it beeps, you
-have command line editing; see Appendix :ref:`tut-interacting` for an
-introduction to the keys.  If nothing appears to happen, or if ``^P`` is
-echoed, command line editing isn't available; you'll only be able to use
-backspace to remove characters from the current line.
-
 The interpreter operates somewhat like the Unix shell: when called with standard
 input connected to a tty device, it reads and executes commands interactively;
 when called with a file name argument or with a file as standard input, it reads