hw/usb: remove duplicate file in system_ss Because USB_EHCI_SYSBUS selects USB_EHCI, there is no need to include hcd-ehci.c explicitly. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240223124406.234509-11-pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>