bpo-46216: remove spurious link to os.system() from os.time() documentation (GH-30326)

Automerge-Triggered-By: GH:iritkatriel
(cherry picked from commit 9b7aa6a)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

Author: miss-islington

Doc/library/os.rst

@@ -4244,20 +4244,20 @@ written in Python, such as a mail server's external command delivery program.
    Returns the current global process times.
    The return value is an object with five attributes:
 
-   * :attr:`user` - user time
-   * :attr:`system` - system time
-   * :attr:`children_user` - user time of all child processes
-   * :attr:`children_system` - system time of all child processes
-   * :attr:`elapsed` - elapsed real time since a fixed point in the past
+   * :attr:`!user` - user time
+   * :attr:`!system` - system time
+   * :attr:`!children_user` - user time of all child processes
+   * :attr:`!children_system` - system time of all child processes
+   * :attr:`!elapsed` - elapsed real time since a fixed point in the past
 
    For backwards compatibility, this object also behaves like a five-tuple
-   containing :attr:`user`, :attr:`system`, :attr:`children_user`,
-   :attr:`children_system`, and :attr:`elapsed` in that order.
+   containing :attr:`!user`, :attr:`!system`, :attr:`!children_user`,
+   :attr:`!children_system`, and :attr:`!elapsed` in that order.
 
    See the Unix manual page
    :manpage:`times(2)` and :manpage:`times(3)` manual page on Unix or `the GetProcessTimes MSDN
    <https://docs.microsoft.com/windows/win32/api/processthreadsapi/nf-processthreadsapi-getprocesstimes>`_
-   on Windows. On Windows, only :attr:`user` and :attr:`system` are known; the other attributes are zero.
+   on Windows. On Windows, only :attr:`!user` and :attr:`!system` are known; the other attributes are zero.
 
    .. availability:: Unix, Windows.