Remove SIMPLE_PROGRAMS and make git-daemon a normal program.

Remove SIMPLE_PROGRAMS and make git-daemon a normal program.

Some platforms (Solaris in particular) appear to require -lz as
part of the link line for git-daemon, due to it linking against
sha1_file.o and that module requiring inflate/deflate support.

So its time to retire SIMPLE_PROGRAMS and move its last remaining
member into the standard PROGRAMS list, allowing it to link against
all libraries used by the rest of Git.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>