docs: update deprecated file

The goal is to consolidate the very basic linux commands and minimize
dependence on another packages (e.g. shadow-utils). It seems better to
keep newgrp, vipw and vigr as non-deprecated for now. Maybe we will
found a way how to improve the code. We will see... :-)

Signed-off-by: Karel Zak <kzak@redhat.com>

Documentation/deprecated.txt

@@ -24,11 +24,6 @@ Why:	the option -s is in collision with the Loop-AES losetup dialect that is use
 
 --------------------------
 
-What:	cryptoloop support in mount/losetup
-Why:	depreciated in favor of dm-crypt.
-
----------------------------
-
 What:	elvtune
 Why:	useless for kernel >= 2.6.9
 
@@ -42,16 +37,6 @@ Why:	deprecated in favor of uname(1) or arch(1) from coreutils
 
 ----------------------------
 
-What:	newgrp(1)
-Why:	deprecated in favor of newgrp from shadow-utils
-
-----------------------------
-
-What:	vipw/vigr(8)
-Why:	deprecated in favor of vipw/vigr(8) from shadow-utils
-
-----------------------------
-
 What:	last(1)
 Why:	nobody uses this implementation