bfsb: Remove unused clock_gettime

driver-bfsb.c

@@ -61,14 +61,11 @@ int bfsb_autodetect()
 	struct bitfury_device **devicelist, *bitfury;
 	struct spi_port *port;
 	int i, j;
-	struct timespec t1, t2;
 	struct bitfury_device dummy_bitfury;
 	struct cgpu_info dummy_cgpu;
 
 	dummy_cgpu.device_data = &dummy_bitfury;
 	
-	clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &t1);
-
 	for (i = 0; i < 4; i++)
 	{
 			int chip_n;
@@ -112,8 +109,6 @@ int bfsb_autodetect()
 			else
 				free(port);
 	}
-
-	clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &t2);
 	
 	if (proc1)
 		proc1->threads = 1;