remove mock data from memory registry

memory registry can be used as fast inprocess registry,
so mock data needs to be in tests only

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

broker/http_broker_test.go

@@ -14,7 +14,7 @@ import (
 func newTestRegistry() *memory.Registry {
 	r := memory.NewRegistry()
 	m := r.(*memory.Registry)
-	m.Setup()
+	m.Services = testData
 	return m
 }