usbnet: remove vestiges of debug macros

The driver has long since be converted to dynamic debugging.
The internal compile options for more debugging can simply be
deleted.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20220630110741.21314-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/usb/usbnet.c

@@ -17,9 +17,6 @@
  * issues can usefully be addressed by this framework.
  */
 
-// #define	DEBUG			// error path messages, extra info
-// #define	VERBOSE			// more; success messages
-
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/netdevice.h>