sync code with last improvements from OpenBSD

usr.bin/tmux/tmux.1

@@ -1,4 +1,4 @@
-.\" $OpenBSD: tmux.1,v 1.932 2023/09/15 06:31:49 nicm Exp $
+.\" $OpenBSD: tmux.1,v 1.933 2023/09/16 16:18:29 nicm Exp $
 .\"
 .\" Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 .\"
@@ -14,7 +14,7 @@
 .\" IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 .\" OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 15 2023 $
+.Dd $Mdocdate: September 16 2023 $
 .Dt TMUX 1
 .Os
 .Sh NAME
@@ -2004,18 +2004,6 @@ Move the cursor to the start of the line.
 (emacs: M-R)
 .Xc
 Move to the top line.
-.It Xo
-.Ic next-prompt
-(vi: C-n)
-(emacs: C-n)
-.Xc
-Move to the next prompt.
-.It Xo
-.Ic previous-prompt
-(vi: C-p)
-(emacs: C-p)
-.Xc
-Move to the previous prompt.
 .El
 .Pp
 The search commands come in several varieties: