dbus_utility: Remove ManagedItem type alias

Type alias ManagedItem is identical to ManagedObjectType::value_type,
remove it.

Tested:
Build pass. No significant change in compressed binary size.

Change-Id: I6d0f0498399ee639d8a5445fe908a7c311327e41
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@intel.com>
diff --git a/redfish-core/lib/log_services.hpp b/redfish-core/lib/log_services.hpp
index 34e9f73..e806bfa 100644
--- a/redfish-core/lib/log_services.hpp
+++ b/redfish-core/lib/log_services.hpp
@@ -328,8 +328,8 @@
 }
 
 inline void parseDumpEntryFromDbusObject(
-    const dbus::utility::ManagedItem& object, std::string& dumpStatus,
-    uint64_t& size, uint64_t& timestamp,
+    const dbus::utility::ManagedObjectType::value_type& object,
+    std::string& dumpStatus, uint64_t& size, uint64_t& timestamp,
     const std::shared_ptr<bmcweb::AsyncResp>& asyncResp)
 {
     for (const auto& interfaceMap : object.second)