Makefile: Remove rabbitmq_ct_helpers from TEST_DEPS for now

dumbbell · dumbbell · commit 26fb399c9561 · 2016-09-19T13:18:54.000+02:00
... because there is no testsuite.

[#130086871]
diff --git a/Makefile b/Makefile
@@ -1,7 +1,6 @@
 PROJECT = rabbitmq_auth_backend_http
 
 DEPS = rabbit_common rabbit amqp_client mochiweb
-TEST_DEPS = rabbitmq_ct_helpers
 
 DEP_PLUGINS = rabbit_common/mk/rabbitmq-plugin.mk
 
