pythongh-125298: Remove misleading text in os.kill documentation (pythonGH-125749)

Windows has not accepted process handles in many releases.
(cherry picked from commit 75ffac2)

Co-authored-by: RUANG (James Roy) <[email protected]>

Author: miss-islington

Doc/library/os.rst

@@ -4245,8 +4245,7 @@ written in Python, such as a mail server's external command delivery program.
    only be sent to console processes which share a common console window,
    e.g., some subprocesses. Any other value for *sig* will cause the process
    to be unconditionally killed by the TerminateProcess API, and the exit code
-   will be set to *sig*. The Windows version of :func:`kill` additionally takes
-   process handles to be killed.
+   will be set to *sig*.
 
    See also :func:`signal.pthread_kill`.