include: remove now unused PACKAGE_SUBDIR variable

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

include/kernel.mk

@@ -155,7 +155,6 @@ define KernelPackage
     DESCRIPTION:=$(DESCRIPTION)
     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
     VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
-    PACKAGE_SUBDIR:=$(if $(FEED),$(FEED),kernel)
     $(call KernelPackage/$(1))
     $(call KernelPackage/$(1)/$(BOARD))
   endef

include/package-defaults.mk

@@ -17,7 +17,6 @@ define Package/Default
   CONFIGFILE:=
   SECTION:=opt
   CATEGORY:=Extra packages
-  PACKAGE_SUBDIR:=$(FEED)
   DEPENDS:=
   MDEPENDS:=
   CONFLICTS:=

include/package-dumpinfo.mk

@@ -52,7 +52,6 @@ $(if $(PKG_LICENSE),License: $(PKG_LICENSE)
 $(if $(KCONFIG),Kernel-Config: $(KCONFIG)
 )$(if $(BUILDONLY),Build-Only: $(BUILDONLY)
 )$(if $(HIDDEN),Hidden: $(HIDDEN)
-)$(if $(PACKAGE_SUBDIR),Package-Subdir: $(PACKAGE_SUBDIR)
 )Description: $(if $(Package/$(1)/description),$(Package/$(1)/description),$(TITLE))
 $(if $(URL),$(URL)
 )$(MAINTAINER)