Fix crash issue with Managers schema

The bmc was initing two copies of the managers route, which was causing
the route handler to crash at startup.  Remove the extra one.

Jul 26 20:39:50 wolfpass systemd[1]: Started Start bmcweb server.
Jul 26 20:39:50 wolfpass bmcweb[3279]: terminate called after throwing
an instance of 'std::runtime_error'
Jul 26 20:39:50 wolfpass bmcweb[3279]:   what():  handler already exists
for /redfish/v1/Managers/openbmc

Change-Id: Id2c469b5e82bddc68987f89f0eff23072b16854c
Signed-off-by: Ed Tanous <ed.tanous@intel.com>
diff --git a/redfish-core/lib/managers.hpp b/redfish-core/lib/managers.hpp
index daee36a..3071518 100644
--- a/redfish-core/lib/managers.hpp
+++ b/redfish-core/lib/managers.hpp
@@ -78,8 +78,7 @@
 
 class ManagerCollection : public Node {
  public:
-  ManagerCollection(CrowApp& app)
-      : Node(app, "/redfish/v1/Managers/"), memberManager(app) {
+  ManagerCollection(CrowApp& app) : Node(app, "/redfish/v1/Managers/") {
     Node::json["@odata.id"] = "/redfish/v1/Managers";
     Node::json["@odata.type"] = "#ManagerCollection.ManagerCollection";
     Node::json["@odata.context"] =
@@ -111,8 +110,6 @@
         {{"@odata.id", "/redfish/v1/Managers/openbmc"}}};
     res.end();
   }
-
-  Manager memberManager;
 };
 
 }  // namespace redfish