Can't remove items from network history (Xbox)
I am only able to access the '...' menu on the first two rows of network history on Xbox (done by pressing 'up' on the controller, but naturally when below the first row this only navigates your selection to the row previous). Perhaps you could map a button on the controller to bring up the context menu for a selected item? My recommendation would be for the 'view' (select) button to serve this function as 'menu' (start) is used to bring up the main menu.