staging: r8188eu: remove ASSERT ifndef and macro definition

Remove ASSERT ifndef and macro definition from include/odm_debug.h, as
these are unused and therefore superfluous.
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210731003937.68615-6-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/odm_debug.h

@@ -68,10 +68,6 @@
 #define RT_PRINTK(fmt, args...)				\
 	DbgPrint( "%s(): " fmt, __func__, ## args);
 
-#ifndef ASSERT
-	#define ASSERT(expr)
-#endif
-
 #define ODM_RT_TRACE(pDM_Odm, comp, level, fmt)				\
 	if (((comp) & pDM_Odm->DebugComponents) &&			\
 	    (level <= pDM_Odm->DebugLevel)) {				\