You can customize the Header top as you like. Follow Theme Options > Theme Settings. Here from the Header tab click Header Top, and the header top field will appear.

Header Top: Switch on for the header to enable/disable.

Language Drop-down: Switch on for the header to enable/disable.

Currency Drop-down: Switch on for the header to enable/disable.

Click Save Changes to save theme options. Click Reset Section to reset only this section. Click Reset All to reset all theme options.