tools: remove some unneeded subdir-distclean-* targets

Those two are already covered by subdir-distclean-% target in
Rules.mk.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

tools/Makefile

@@ -296,9 +296,6 @@ subdir-uninstall-debugger/kdd: .phony
 subdir-all-debugger/kdd: .phony
 	$(MAKE) -C debugger/kdd all
 
-subdir-distclean-firmware: .phony
-	$(MAKE) -C firmware distclean
-
 subtree-force-update:
 ifeq ($(CONFIG_QEMU_XEN),y)
 	$(MAKE) qemu-xen-dir-force-update

tools/firmware/Makefile

@@ -85,9 +85,6 @@ clean: subdirs-clean
 .PHONY: distclean
 distclean: subdirs-distclean
 
-subdir-distclean-etherboot: .phony
-	$(MAKE) -C etherboot distclean
-
 subdir-distclean-ovmf-dir: .phony
 	rm -rf ovmf-dir ovmf-dir-remote