Remove a bunch of non-utils from the to-do list

README.md

@@ -123,12 +123,10 @@ To do
 - chcon
 - chgrp
 - chmod
-- chown-core
 - chown
 - chroot
 - copy
 - cp (not much done)
-- cp-hash
 - csplit
 - cut
 - date
@@ -137,20 +135,13 @@ To do
 - dircolors
 - expand (in progress)
 - expr
-- extent-scan
-- find-mount-point
 - fmt
 - getlimits
-- group-list
 - install
 - join
-- lbracket
 - libstdbuf
 - link
 - ln
-- ls-dir
-- ls-ls
-- ls-vdir
 - ls
 - mkfifo
 - mknod
@@ -162,12 +153,10 @@ To do
 - nproc
 - numfmt
 - od
-- operand2sig
 - pathchk
 - pinky
 - pr
 - printf
-- prog-fprintf
 - ptx
 - readlink
 - realpath
@@ -183,13 +172,10 @@ To do
 - stdbuf
 - stty (in progress)
 - sync
-- tac-pipe
 - tail (not all features implemented)
 - test
 - timeout
 - tsort
-- uname-arch
-- uname-uname
 - unexpand
 - uniq (in progress)
 - who