Revert "Fix remove callback user privilege access to login"

This reverts commit 8e69d148249f6a45cea10e988ec03430a5932784.

Reason for revert: This causes service validator failures.

I missed the fact that despite being asked a couple times, the service validator wasn't run.  Please run it, resolve your bug, and resubmit as a new review.

Change-Id: I0bb61ab1a618a96b2ed2c600825ec72b8d020ec0
diff --git a/redfish-core/include/privileges.hpp b/redfish-core/include/privileges.hpp
index 113f66a..ec6e6a5 100644
--- a/redfish-core/include/privileges.hpp
+++ b/redfish-core/include/privileges.hpp
@@ -192,18 +192,12 @@
         static Privileges op{"Login", "ConfigureSelf", "ConfigureComponents"};
         return op;
     }
-    else if (userRole == "priv-user")
+    else
     {
         // Redfish privilege : Readonly
         static Privileges readOnly{"Login", "ConfigureSelf"};
         return readOnly;
     }
-    else
-    {
-        // Redfish Privilege : No privileges for callback users
-        static Privileges noPriv{};
-        return noPriv;
-    }
 }
 
 using OperationMap = boost::container::flat_map<boost::beast::http::verb,
diff --git a/redfish-core/lib/roles.hpp b/redfish-core/lib/roles.hpp
index 956f566..fbe8653 100644
--- a/redfish-core/lib/roles.hpp
+++ b/redfish-core/lib/roles.hpp
@@ -61,7 +61,7 @@
     }
     else if (role == "Callback")
     {
-        privArray = {};
+        privArray = {"Login"};
     }
     else
     {