Touch up validate Makefile rule.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@8573 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

Makefile

@@ -107,11 +107,8 @@ dump-commands: validxml
 	$(Q)xsltproc --output $(DUMPDIR)/ \
 	   stylesheets/dump-commands.xsl $(RENDERTMP)/lfs-full.xml
 
-validate:
-	@echo "Processing bootscripts..."
-	$(Q)bash process-scripts.sh $(RENDERTMP)
-	@echo "Validating the book..."
-	$(Q)xmllint --noout --nonet --xinclude --postvalid index.xml
+validate: validxml
+	@echo "Validation complete."
 
 all: lfs nochunks pdf dump-commands