Don't copy in all the rake tasks.

default.xml

@@ -13,20 +13,6 @@
   <project path="build-tools" name="build-couchdb">
 	<copyfile src="README.md" dest="README.md" />
 	<copyfile src="Rakefile" dest="Rakefile" />
-	<copyfile src="TODO" dest="TODO" />
-	<copyfile src="tasks/all.rake" dest="tasks/all.rake" />
-	<copyfile src="tasks/couchdb.rake" dest="tasks/couchdb.rake" />
-	<copyfile src="tasks/distro.rake" dest="tasks/distro.rake" />
-	<copyfile src="tasks/distros.rb" dest="tasks/distros.rb" />
-	<copyfile src="tasks/environment.rake" dest="tasks/environment.rake" />
-	<copyfile src="tasks/erlang.rake" dest="tasks/erlang.rake" />
-	<copyfile src="tasks/export.rake" dest="tasks/export.rake" />
-	<copyfile src="tasks/icu.rake" dest="tasks/icu.rake" />
-	<copyfile src="tasks/lib.rb" dest="tasks/lib.rb" />
-	<copyfile src="tasks/shortcuts.rake" dest="tasks/shortcuts.rake" />
-	<copyfile src="tasks/toolchain.rake" dest="tasks/toolchain.rake" />
-	<copyfile src="tasks/tracemonkey.rake" dest="tasks/tracemonkey.rake" />
-	<copyfile src="templates/env.sh.erb" dest="templates/env.sh.erb" />
   </project>
 
   <project path="dependencies/couchdb" name="couchdb"