mosquitto: remove ipv6 depends

The package was added after the last iteration of the non-ipv6
toolchain removal, so adjust it.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/mosquitto/Config.in

@@ -1,7 +1,6 @@
 config BR2_PACKAGE_MOSQUITTO
 	bool "mosquitto"
 	depends on BR2_USE_MMU # fork()
-	depends on BR2_INET_IPV6
 	depends on !BR2_STATIC_LIBS # builds .so
 	help
 	  Mosquitto is an open source message broker that implements
@@ -14,6 +13,6 @@ config BR2_PACKAGE_MOSQUITTO
 
 	  http://mosquitto.org/
 
-comment "mosquitto needs a toolchain w/ IPv6, dynamic library"
+comment "mosquitto needs a toolchain w/ dynamic library"
 	depends on BR2_USE_MMU
-	depends on !BR2_INET_IPV6 || BR2_STATIC_LIBS
+	depends on BR2_STATIC_LIBS