another cleanup missed from [8587]

SVN-Revision: 8589

package/mac80211/Makefile

@@ -12,8 +12,6 @@ include $(INCLUDE_DIR)/kernel.mk
 PKG_NAME:=mac80211
 PKG_RELEASE:=1
 
-PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
-
 include $(INCLUDE_DIR)/package.mk
 ifeq ($(DUMP),)
   include $(LINUX_DIR)/.config