Is the ribbon hidden in favor of this menu bar? These look like the old menu bars from before the ribbon days?
If so, they were likely created in version 2003 or earlier and there may or may not be any code behind them. Open the vb editor and do a search (option - project) for the word 'commandbar'. If you find code related to the commandbar object, that's a good start. To remove (or better, hide) a menu or one of its options will require code changes. If you find no such code, it might be possible to hide or alter the menu bar or options, but we'd need to know how the menu bar interacts with the Access ribbon.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.