staging:ti dspbridge: remove DSP_FAILED macro definition

Since status succeeded is now 0 macro DSP_FAILED
is not necessary anymore. This patch removes this
define.
Signed-off-by: NErnesto Ramos <ernesto@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/tidspbridge/include/dspbridge/dbdefs.h

@@ -91,9 +91,6 @@
 #define DSPWORD       unsigned char
 #define DSPWORDSIZE     sizeof(DSPWORD)
 
-/* Failure macro */
-#define DSP_FAILED(status)         unlikely((s32)(status) < 0)
-
 /* Power control enumerations */
 #define PROC_PWRCONTROL             0x8070