iw: pkg-config cleanup

We no longer need to specify PKG_CONFIG_PATH since it's handled by the
host-pkgconf wrapper.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/iw/iw.mk

@@ -9,8 +9,7 @@ IW_SOURCE = iw-$(IW_VERSION).tar.bz2
 IW_SITE = http://wireless.kernel.org/download/iw
 IW_DEPENDENCIES = host-pkgconf libnl
 IW_CONFIG = $(IW_DIR)/.config
-IW_MAKE_ENV = PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig" \
-	PKG_CONFIG="$(HOST_DIR)/usr/bin/pkg-config" \
+IW_MAKE_ENV = PKG_CONFIG="$(HOST_DIR)/usr/bin/pkg-config" \
 	GIT_DIR=$(IW_DIR)
 
 ifeq ($(BR2_PREFER_STATIC_LIB),y)