base-files: remove ftp user and group

Any ftpd package such as vsftpd or atftpd (are there others?) should
create their own unprivileged user. Both of the aforementioned
packages do not even use this ftp user and run as root. That should be
addressed in separate commits.

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/19418
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/base-files/files/etc/group

@@ -5,7 +5,6 @@ mail:x:8:
 dialout:x:20:
 audio:x:29:
 www-data:x:33:
-ftp:x:55:
 users:x:100:
 network:x:101:
 nogroup:x:65534:

package/base-files/files/etc/passwd

@@ -1,5 +1,4 @@
 root:x:0:0:root:/root:/bin/ash
 daemon:*:1:1:daemon:/var:/bin/false
-ftp:*:55:55:ftp:/home/ftp:/bin/false
 network:*:101:101:network:/var:/bin/false
 nobody:*:65534:65534:nobody:/var:/bin/false

package/base-files/files/etc/shadow

@@ -1,5 +1,4 @@
 root:::0:99999:7:::
 daemon:*:0:0:99999:7:::
-ftp:*:0:0:99999:7:::
 network:*:0:0:99999:7:::
 nobody:*:0:0:99999:7:::