base-files: remove unused vn and _vn function

The remaining vn calls have been ported to v.
Therefore, these functions are no longer needed and will be removed.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

package/base-files/files/lib/upgrade/common.sh

@@ -65,19 +65,11 @@ _v() {
 	[ -n "$VERBOSE" ] && [ "$VERBOSE" -ge 1 ] && echo "$*" >&2
 }
 
-_vn() {
-	[ -n "$VERBOSE" ] && [ "$VERBOSE" -ge 1 ] && echo -n "$*" >&2
-}
-
 v() {
 	_v "$(date) upgrade: $@"
 	logger -p info -t upgrade "$@"
 }
 
-vn() {
-	_vn "$(date) upgrade: $@"
-}
-
 json_string() {
 	local v="$1"
 	v="${v//\\/\\\\}"