This diff is a fix.
One occurrence of `removeMessageItem(...)` was missed to update due to the changes introduced in D4694. This diff fixes DatabaseManager tests to run without errors. At the moment `DatabaseManager` unit tests building fails with an error:
```
/transferred/test/DatabaseManagerTest.cpp: In member function 'virtual void DatabaseManagerTest_RemoveMessageItemsInBatch_Test::TestBody()':
/transferred/test/DatabaseManagerTest.cpp:387:45: error: no matching function for call to 'comm::network::database::DatabaseManager::removeMessageItem(std::string)'
387 | messageThirdToNotRemove.getMessageID());
```