patches/luci: luci-mod-diagnostics: nslookup path: drop

We had the patch because we wanted to persuade the busybox to
install everything into /{s,}bin, but let's say it was not a good
solution for us. I verified that /usr/sbin/ntpd is now present in
correct path on router as it is in OpenWrt.

So, this patch is no longer required as the patch was removed.
See: a4ce259c

patches/luci/hack/0004-luci-mod-diagnostics-add-nslookup.patch

-From 02bc98a0c3bcfd56c0c26525b86827f2953c76fd Mon Sep 17 00:00:00 2001
-From: Josef Schlehofer <pepe.schlehofer@gmail.com>
-Date: Fri, 1 Jan 2021 14:34:10 +0100
-Subject: [PATCH] test
-
-If there is no /usr/sbin/ntpd, the ntpd section in LuCI isn't shown.
-This happens when we have located busybox ntpd in /sbin/ntpd instead of
-/usr/sbin/ntpd.
-
-Related to: https://gitlab.labs.nic.cz/turris/turris-build/blob/master/patches/openwrt/hack/0003-busybox-Try-to-install-everything-into-s-bin.patch
-
-Fixes: https://forum.turris.cz/t/ntp-server-choice-removed/10405/14?u=pepe
-
----
- .../root/usr/share/rpcd/acl.d/luci-mod-network.json              | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/modules/luci-mod-network/root/usr/share/rpcd/acl.d/luci-mod-network.json b/modules/luci-mod-network/root/usr/share/rpcd/acl.d/luci-mod-network.json
-index d6c84bab2..4eea3b30b 100644
---- a/modules/luci-mod-network/root/usr/share/rpcd/acl.d/luci-mod-network.json
-+++ b/modules/luci-mod-network/root/usr/share/rpcd/acl.d/luci-mod-network.json
-@@ -46,6 +46,7 @@
- 		"description": "Grant access to network diagnostic tools",
- 		"read": {
- 			"file": {
-+				"/bin/nslookup": [ "exec" ],
- 				"/bin/ping": [ "exec" ],
- 				"/bin/ping6": [ "exec", "list" ],
- 				"/bin/traceroute": [ "exec" ],
---
-2.25.1