Switch from SCCS to git.

Remove the SCCS keyword '%W%' from all files.
Mostly this just remove comments.
Remove trailing white space, too.
* Makefile (TZCODE_VERSION): New macro.
(version.h): New rule.
(tzselect): Interpolate TZCODE_VERSION.
(clean): Remove version.h.
(zdump.o, zic.o): Depend on version.h.
* asctime.c, date.c, difftime.c, ialloc.c, localtime.c, scheck.c:
* strftime.c, zdump.c, zic.c: Remove elsieid.
* private.h: Remove privatehid.
* tzfile.h: Remove tzfilehid.
* tzselect.h (TZCODE_VERSION): Rename from VERSION.
* zdump.c, zic.c: Include "version.h",
and use TZCODE_VERSION instead of elsieid.

tzfile.h

@@ -15,16 +15,6 @@
 ** Thank you!
 */
 
-/*
-** ID
-*/
-
-#ifndef lint
-#ifndef NOID
-static char	tzfilehid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*
 ** Information about time zone files.
 */