Removed redundant -s rabbit from the startup args in Makefile

Author: Paul Jones

Makefile

@@ -103,7 +103,7 @@ BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\
 run: all
 	$(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \
 		RABBITMQ_ALLOW_INPUT=true \
-		RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -s rabbit" \
+		RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \
 		./scripts/rabbitmq-server
 
 run-node: all