Value returned from a function is not checked for errors before being used

Defect 73709 (STATIC_C)
Checker CHECKED_RETURN (subcategory none)
File: /src/mongo/executor/network_interface_asio.cpp
Function mongo::executor::NetworkInterfaceASIO::startCommand(const mongo::executor::TaskExecutor::CallbackHandle &, const mongo::executor::RemoteCommandRequest &, const std::function<void (const mongo::StatusWith<mongo::executor::RemoteCommandResponse> &)> &)::[lambda(mongo::StatusWith<std::unique_ptr<mongo::executor::ConnectionPool::ConnectionInterface, mongo::executor::ConnectionPool::ConnectionHandleDeleter>>) (instance 1)]::operator ()(mongo::StatusWith<std::unique_ptr<mongo::executor::ConnectionPool::ConnectionInterface, mongo::executor::ConnectionPool::ConnectionHandleDeleter>>) const
/src/mongo/executor/network_interface_asio.cpp, line: 166
Calling "erase" without checking return value (as is done elsewhere 2 out of 3 times).

                    _inGetConnection.erase(cbHandle);