Remove copyright strings ifdef'd out

We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals. These copyright strings are present in the comments and
are largely from CSRG's attempt at adding their copyright to every
binary file (which modern interpretations of the license doesn't
require).

Sponsored by: Netflix

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Purge more stray embedded $FreeBSD$ strings

These do not use __FBSDID but instead use bare char arrays.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41957

Unbreak build after r327614

Approved by: mjg (on IRC)
Differential Revision: https://reviews.freebsd.org/D13782

morse(6): minor nits

- Use copyright comment header
- Make it easier to compile on !FreeBSD
- Diff reduction against DragonFlyBSD

morse(6): implement support for decoding morse code

- Use `-r` for "reverse" mode and to match DragonFlyBSD.
- Move defines around to clear up logic
- use `errx` instead of `fprintf` and `exit`

PR: 35109
Submitted By: philipp.mergenthaler@stud.uni-karlsruhe.de
Submitted on: 2002-02-19
Reviewed by: kevans

morse(6): fix two typod

morse(6): add a few missing characters

- add ñ, ', and _
- remove lint support
- add missing header for ioctl

Final step of eliminating the "games" distribution: Merge src/games
(or what's left of it, at least) into src/usr.bin.

This change will not be MFCed.

Discussed at: EuroBSDCon 2014
Committed from: EuroBSDCon 2015