build: remove tboot make targets

The tboot targets are woefully out of date. These should really be
retired because setting up tboot is more complex than the build process
for it.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Christopher Clark <christopher.clark6@baesystems.com>

Makefile

@@ -291,11 +291,6 @@ help:
 	@echo '  uninstall             - attempt to remove installed Xen tools'
 	@echo '                          (use with extreme care!)'
 	@echo
-	@echo 'Trusted Boot (tboot) targets:'
-	@echo '  build-tboot           - download and build the tboot module'
-	@echo '  install-tboot         - download, build, and install the tboot module'
-	@echo '  clean-tboot           - clean the tboot module if it exists'
-	@echo
 	@echo 'Package targets:'
 	@echo '  src-tarball-release   - make a source tarball with xen and qemu tagged with a release'
 	@echo '  src-tarball           - make a source tarball with xen and qemu tagged with git describe'
@@ -324,46 +319,7 @@ uninstall-docs:
 .PHONY: uninstall
 uninstall: D=$(DESTDIR)
 uninstall: uninstall-tools-public-headers $(TARGS_UNINSTALL)
-	rm -rf $(D)/boot/tboot*
 
 .PHONY: xenversion
 xenversion:
 	@$(MAKE) --no-print-directory -C xen xenversion
-
-#
-# tboot targets
-#
-
-TBOOT_TARFILE = tboot-20090330.tar.gz
-#TBOOT_BASE_URL = http://downloads.sourceforge.net/tboot
-TBOOT_BASE_URL = $(XEN_EXTFILES_URL)
-
-.PHONY: build-tboot
-build-tboot: download_tboot
-	$(MAKE) -C tboot build
-
-.PHONY: install-tboot
-install-tboot: download_tboot
-	$(MAKE) -C tboot install
-
-.PHONY: dist-tboot
-dist-tboot: download_tboot
-	$(MAKE) DESTDIR=$(DISTDIR)/install -C tboot dist
-
-.PHONY: clean-tboot
-clean-tboot:
-	[ ! -d tboot ] || $(MAKE) -C tboot clean
-
-.PHONY: distclean-tboot
-distclean-tboot:
-	[ ! -d tboot ] || $(MAKE) -C tboot distclean
-
-.PHONY: download_tboot
-download_tboot: tboot/Makefile
-
-tboot/Makefile: tboot/$(TBOOT_TARFILE)
-	[ -e tboot/Makefile ] || tar -xzf tboot/$(TBOOT_TARFILE) -C tboot/ --strip-components 1
-
-tboot/$(TBOOT_TARFILE):
-	mkdir -p tboot
-	wget -O tboot/$(TBOOT_TARFILE) $(TBOOT_BASE_URL)/$(TBOOT_TARFILE)