No need extra debug printfs when NO_ALT_SET enabled

diff --git a/backend/usb-libusb.c b/backend/usb-libusb.c
index 41132104891225edaa61a0b27a55a886acc43d7d..ecc879f4fe21e2ec96156e5b21a04f21be1b7b5d 100644 (file)
--- a/backend/usb-libusb.c
+++ b/backend/usb-libusb.c
@@ -695,8 +695,6 @@ close_device(usb_printer_t *printer)        /* I - Printer */
       * If we have changed the configuration from one valid configuration
       * to another, restore the old one
       */
-      if (printer->quirks & USB_QUIRK_NO_ALT_SET)
-        fprintf(stderr, "DEBUG: close_device - Skipping libusb_set_configuration\n");
 
       if (printer->origconf > 0 && printer->origconf != number2 && !(printer->quirks & USB_QUIRK_NO_ALT_SET))
       {
@@ -1606,9 +1604,6 @@ open_device(usb_printer_t *printer,       /* I - Printer */
   }
   number1 = confptr->bConfigurationValue;
 
-  if (printer->quirks & USB_QUIRK_NO_ALT_SET)
-    fprintf(stderr, "DEBUG: open_device - Skipping libusb_set_configuration\n");
-
   if (number1 != current && !(printer->quirks & USB_QUIRK_NO_ALT_SET))
   {
     fprintf(stderr, "DEBUG: Switching USB device configuration: %d -> %d\n",
@@ -1661,9 +1656,6 @@ open_device(usb_printer_t *printer,       /* I - Printer */
   * printers (e.g., Samsung) don't like usb_set_altinterface.
   */
 
-  if (printer->quirks & USB_QUIRK_NO_ALT_SET)
-    fprintf(stderr, "DEBUG: open_device - Skipping libusb_set_interface_alt_setting\n");
-
   if (confptr->interface[printer->iface].num_altsetting > 1 && !(printer->quirks & USB_QUIRK_NO_ALT_SET))
   {
     number1 = confptr->interface[printer->iface].