Remove other gems from external tests.

Author: ioquatix

bake.rb

@@ -5,10 +5,6 @@ def external
 
 	Bundler.with_clean_env do
 		clone_and_test("async-io")
-		clone_and_test("async-pool", "sus")
-		clone_and_test("async-dns")
-		clone_and_test("falcon", "sus")
-		clone_and_test("async-rest", "sus")
 	end
 end