Remove csplit(1)

Get rid of it for now as it is not really widely used.  We can do
a simple implementation when time comes.

Remove the table from README because it is not easy to edit unless
you use emacs.

README

@@ -4,165 +4,6 @@ sbase - suckless unix tools
 sbase  is a  collection of  unix  tools that  are inherently  portable
 across UNIX and UNIX-like systems.
 
-The following programs are currently implemented:
-
-+---------+-----------+--------+
-|UTILITY  |POSIX      |FEATURES|
-|         |CONFORMANCE|MISSING |
-+---------+-----------+--------+
-|basename |           |        |
-+---------+-----------+--------+
-|cal      |           |        |
-+---------+-----------+--------+
-|cat      |           |        |
-+---------+-----------+--------+
-|chgrp    |           |        |
-+---------+-----------+--------+
-|chmod    |           |        |
-+---------+-----------+--------+
-|chown    |           |        |
-+---------+-----------+--------+
-|chroot   |           |        |
-+---------+-----------+--------+
-|cksum    |           |        |
-+---------+-----------+--------+
-|cmp      |           |        |
-+---------+-----------+--------+
-|col      |           |        |
-+---------+-----------+--------+
-|cols     |           |        |
-+---------+-----------+--------+
-|comm     |           |        |
-+---------+-----------+--------+
-|cp       |           |        |
-+---------+-----------+--------+
-|csplit   |           |        |
-+---------+-----------+--------+
-|cut      |           |        |
-+---------+-----------+--------+
-|date     |           |        |
-+---------+-----------+--------+
-|dirname  |           |        |
-+---------+-----------+--------+
-|du       |           |        |
-+---------+-----------+--------+
-|echo     |           |        |
-+---------+-----------+--------+
-|env      |           |        |
-+---------+-----------+--------+
-|expand   |           |        |
-+---------+-----------+--------+
-|expr     |           |        |
-+---------+-----------+--------+
-|false    |           |        |
-+---------+-----------+--------+
-|fold     |           |        |
-+---------+-----------+--------+
-|grep     |           |        |
-+---------+-----------+--------+
-|head     |           |        |
-+---------+-----------+--------+
-|hostname |           |        |
-+---------+-----------+--------+
-|kill     |           |        |
-+---------+-----------+--------+
-|link     |           |        |
-+---------+-----------+--------+
-|ln       |           |        |
-+---------+-----------+--------+
-|logname  |           |        |
-+---------+-----------+--------+
-|ls       |           |        |
-+---------+-----------+--------+
-|md5sum   |           |        |
-+---------+-----------+--------+
-|mkdir    |           |        |
-+---------+-----------+--------+
-|mkfifo   |           |        |
-+---------+-----------+--------+
-|mktemp   |           |        |
-+---------+-----------+--------+
-|mv       |           |        |
-+---------+-----------+--------+
-|nice     |           |        |
-+---------+-----------+--------+
-|nl       |           |        |
-+---------+-----------+--------+
-|nohup    |           |        |
-+---------+-----------+--------+
-|paste    |           |        |
-+---------+-----------+--------+
-|printenv |           |        |
-+---------+-----------+--------+
-|printf   |           |        |
-+---------+-----------+--------+
-|pwd      |           |        |
-+---------+-----------+--------+
-|readlink |           |        |
-+---------+-----------+--------+
-|renice   |           |        |
-+---------+-----------+--------+
-|rm       |           |        |
-+---------+-----------+--------+
-|rmdir    |           |        |
-+---------+-----------+--------+
-|sleep    |           |        |
-+---------+-----------+--------+
-|setsid   |           |        |
-+---------+-----------+--------+
-|sort     |           |        |
-+---------+-----------+--------+
-|split    |           |        |
-+---------+-----------+--------+
-|sponge   |           |        |
-+---------+-----------+--------+
-|strings  |           |        |
-+---------+-----------+--------+
-|sync     |           |        |
-+---------+-----------+--------+
-|tail     |           |        |
-+---------+-----------+--------+
-|tar      |           |        |
-+---------+-----------+--------+
-|tee      |           |        |
-+---------+-----------+--------+
-|test     |           |        |
-+---------+-----------+--------+
-|touch    |           |        |
-+---------+-----------+--------+
-|tr       |           |        |
-+---------+-----------+--------+
-|true     |           |        |
-+---------+-----------+--------+
-|tty      |           |        |
-+---------+-----------+--------+
-|uudecode |           |        |
-+---------+-----------+--------+
-|uuencode |           |        |
-+---------+-----------+--------+
-|uname    |           |        |
-+---------+-----------+--------+
-|unexpand |           |        |
-+---------+-----------+--------+
-|uniq     |           |        |
-+---------+-----------+--------+
-|unlink   |           |        |
-+---------+-----------+--------+
-|seq      |           |        |
-+---------+-----------+--------+
-|sha1sum  |           |        |
-+---------+-----------+--------+
-|sha256sum|           |        |
-+---------+-----------+--------+
-|sha512sum|           |        |
-+---------+-----------+--------+
-|wc       |           |        |
-+---------+-----------+--------+
-|xargs    |           |        |
-+---------+-----------+--------+
-|yes      |           |        |
-+---------+-----------+--------+
-
 The  complement of  sbase  is  ubase[1] which  is  Linux-specific  and
 provides all  the non-portable tools.   Together they are  intended to
 form a base system similar to busybox but much smaller and suckless.