That's called the "Form View" ToolBar.
All you need to do is to right-click blank space somewhere on a ToolBar
(including MenuBar) and you can see the name of the visible ToolBars.
To see the name of all ToolBars, right-click as above and select "Customize
...."
To hide a Control on the "Form View" ToolBar, use:
Application.CommandBars("Form View").Controls(1).Visible=False
Change the Control Index to suit your requirements.
Make sure you reset it back when the database is closed so that the use can
use other databases without being affected by your database. Hence, it is
normal practive to create a Custom ToolBar (with reduced number of Controls)
rather than modify the standard ToolBars.