FreeBSD/src 8643808 (r340407). Makefile.inc1, release/scripts make-manifest.sh

In followup to r340406, remove doc from the EXTRA_DISTRIBUTIONS
list and remaining references from the script used to create the
MANIFEST file used by bsdinstall(8).

No MFC is planned at this time.

Sponsored by:   The FreeBSD Foundation
DeltaFile
+2-2Makefile.inc1
+0-3release/scripts/make-manifest.sh
+2-52 files

UnifiedSplitRaw