package/dnsmasq: drop wchar dependency on IDN option

wchar dependency on IDN option has been added with commit
126a2e75f5948b30f842862906fca8ed99ffff26 because of libintl

However libintl dependency has been dropped with commit
bbcbed1829057121f9f9459f62f913626206e823 so remove unneeded wchar
dependency

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dnsmasq/Config.in

@@ -29,7 +29,6 @@ config BR2_PACKAGE_DNSMASQ_DNSSEC
 
 config BR2_PACKAGE_DNSMASQ_IDN
 	bool "IDN support"
-	depends on BR2_USE_WCHAR
 	select BR2_PACKAGE_LIBIDN
 	help
 	  Enable IDN support in dnsmasq.