package/bind: remove threads dependency

Threads dependency has been added in 2015 with commit
07c1ad4647b6a8e60338fc01ddcb2d629de0ad14 however bind can be built
without threads thanks to --disable-threads

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

package/bind/Config.in

@@ -1,7 +1,6 @@
 config BR2_PACKAGE_BIND
 	bool "bind"
 	depends on BR2_USE_MMU # fork()
-	depends on BR2_TOOLCHAIN_HAS_THREADS
 	help
 	  BIND (Berkeley Internet Name Domain) is an
 	  implementation of the Domain Name System (DNS) protocols
@@ -39,7 +38,3 @@ config BR2_PACKAGE_BIND_TOOLS
 	  Install tools (dig, host, nslookup, nsupdate)
 
 endif
-
-comment "bind needs a toolchain w/ threads"
-	depends on BR2_USE_MMU
-	depends on !BR2_TOOLCHAIN_HAS_THREADS

package/bind/bind.mk

@@ -24,6 +24,7 @@ BIND_CONF_ENV = \
 	BUILD_CC="$(TARGET_CC)" \
 	BUILD_CFLAGS="$(TARGET_CFLAGS)"
 BIND_CONF_OPTS = \
+	$(if $(BR2_TOOLCHAIN_HAS_THREADS),--enable-threads,--disable-threads) \
 	--without-lmdb \
 	--with-libjson=no \
 	--with-randomdev=/dev/urandom \