nss-mdns: drop nsswitch.conf installation logic

With the nsswitch.conf installation logic moved to the post-install-install
hook of the toolchain package, it is guaranteed to be available when
nss-mdns is run - So drop the logic.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nss-mdns/nss-mdns.mk

@@ -10,9 +10,6 @@ NSS_MDNS_LICENSE = LGPL-2.1+
 NSS_MDNS_LICENSE_FILES = LICENSE
 
 define NSS_MDNS_INSTALL_CONFIG
-	if [ ! -f "$(TARGET_DIR)/etc/nsswitch.conf" ]; then \
-		$(INSTALL) -D -m 0644 package/glibc/nsswitch.conf $(TARGET_DIR)/etc/nsswitch.conf ; \
-	fi
 	sed -r -i -e 's/^(hosts:[[:space:]]+).*/\1files mdns4_minimal [NOTFOUND=return] dns mdns4/' \
 		$(TARGET_DIR)/etc/nsswitch.conf
 endef