staging: rtl8188eu:Remove unused inline function res_to_status()

Signed-off-by: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/include/osdep_service.h

@@ -239,11 +239,6 @@ static inline void flush_signals_thread(void)
 		flush_signals(current);
 }
 
-static inline int res_to_status(int res)
-{
-	return res;
-}
-
 #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r))
 #define RND4(x)	(((x >> 2) + (((x & 3) == 0) ?  0 : 1)) << 2)