Deprecate fdc(4) and floppy utilities

Floppies have been obsolete for over a decade.  Add a deprecation note
now and plan to remove fdc(4) support in 16.

Reviewed by:	ziaee
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41549

(cherry picked from commit 4c736cfc69)

share/man/man4/fdc.4

@@ -25,7 +25,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd October 10, 2023
+.Dd November 16, 2025
 .Dt FDC 4
 .Os
 .Sh NAME
@@ -47,6 +47,12 @@ In
 .Cd hint.fd.1.at="fdc0"
 .Cd hint.fd.1.drive="1"
 .Cd hint.fd.1.flags="0x0"
+.Sh DEPRECATION NOTICE
+The
+.Nm
+driver is deprecated and may not be present in
+.Fx 16.0
+and later.
 .Sh DESCRIPTION
 .Ss Device Usage
 This driver provides access to floppy disk drives.

usr.sbin/fdcontrol/fdcontrol.8

@@ -23,7 +23,7 @@
 .\" USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 .\" DAMAGE.
 .\"
-.Dd April 7, 2017
+.Dd November 16, 2025
 .Dt FDCONTROL 8
 .Os
 .Sh NAME
@@ -37,6 +37,11 @@
 .Op Fl s Ar fmtstr
 .Op Fl v
 .Ar device
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and may not be present in
+.Fx 16.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm

usr.sbin/fdformat/fdformat.8

@@ -22,7 +22,7 @@
 .\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd May 23, 2020
+.Dd November 16, 2025
 .Dt FDFORMAT 8
 .Os
 .Sh NAME
@@ -35,6 +35,11 @@
 .Op Fl s Ar fmtstr
 .Op Fl nqvy
 .Ar device
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and may not be present in
+.Fx 16.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm

usr.sbin/fdread/fdread.1

@@ -24,7 +24,7 @@
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
 .\"
-.Dd May 14, 2001
+.Dd November 16, 2025
 .Dt FDREAD 1
 .Os
 .Sh NAME
@@ -40,6 +40,11 @@
 .Op Fl d Ar device
 .Fl I Ar numsects
 .Op Fl t Ar trackno
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and may not be present in
+.Fx 16.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm

usr.sbin/fdwrite/fdwrite.1

@@ -7,7 +7,7 @@
 .\" ----------------------------------------------------------------------------
 .\"
 .\"
-.Dd September 16, 1993
+.Dd November 16, 2025
 .Dt FDWRITE 1
 .Os
 .Sh NAME
@@ -19,6 +19,11 @@
 .Op Fl y
 .Op Fl f Ar inputfile
 .Op Fl d Ar device
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and may not be present in
+.Fx 16.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm