staging: emxx_udc: Remove misplaced debugging aid

emxx_udc.h contained a #if 0 block with debugging macros. These should
be supplied via command line or Kconfig.

Fixes checkstyle's
WARNING: Consider removing the code enclosed by this #if 0 and its #endif
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Link: https://lore.kernel.org/r/20200911213350.15914-1-dottedmag@dottedmag.netSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/emxx_udc/emxx_udc.h

@@ -9,11 +9,6 @@
 #define _LINUX_EMXX_H
 
 /*---------------------------------------------------------------------------*/
-/*----------------- Default undef */
-#if 0
-#define DEBUG
-#define UDC_DEBUG_DUMP
-#endif
 
 /*----------------- Default define */
 #define	USE_DMA	1