debian/rules.d: Delete now-unused recursive makefiles

Since commit f5f169ba99 "Split build rules for tools to allow
skipping them." these recursive makefiles are not used.

(debian/rules.d/Makefile can additionally install the top-level Kbuild
and Makefile, but that target hasn't been used since svn rev 18133
(version 3.1-1~experimental.1).)

debian/changelog

@@ -9,6 +9,7 @@ linux (4.19.16-2) UNRELEASED; urgency=medium
   [ Ben Hutchings ]
   * debian/rules.d, debian/rules.real: Restore build of userland headers for
     tools
+  * debian/rules.d: Delete now-unused recursive makefiles
 
  -- Luca Boccassi <bluca@debian.org>  Fri, 18 Jan 2019 19:09:06 +0000
 

debian/rules.d/Makefile

@@ -1,14 +0,0 @@
-DATA = \
-	Kbuild \
-	Makefile \
-
-SUBDIRS = \
-	scripts \
-	tools
-
-DEB_HOST_ARCH := $(shell dpkg-architecture -qDEB_HOST_ARCH)
-ifneq ($(filter powerpc powerpcspe ppc64,$(DEB_HOST_ARCH)),)
-	SUBDIRS += arch/powerpc/boot
-endif
-
-include $(top_rulesdir)/Makefile.inc

debian/rules.d/tools/Makefile

@@ -1,10 +0,0 @@
-SUBDIRS = \
-	hv \
-	lib/bpf \
-	lib/lockdep \
-	objtool \
-	perf \
-	power \
-	usb/usbip
-
-include $(top_rulesdir)/Makefile.inc

debian/rules.d/tools/power/Makefile

@@ -1,8 +0,0 @@
-SUBDIRS = \
-	cpupower
-
-ifneq ($(filter i386 amd64 x32,$(DEB_HOST_ARCH)),)
-SUBDIRS += x86
-endif
-
-include $(top_rulesdir)/Makefile.inc