Remove two redundant casts from calls to ut_print_buf.

btr/btr0pcur.c

@@ -208,7 +208,7 @@ btr_pcur_restore_position(
 	if (UNIV_UNLIKELY(cursor->old_stored != BTR_PCUR_OLD_STORED)
 		|| UNIV_UNLIKELY(cursor->pos_state != BTR_PCUR_WAS_POSITIONED
 			&& cursor->pos_state != BTR_PCUR_IS_POSITIONED)) {
-		ut_print_buf(stderr, (const byte*)cursor, sizeof(btr_pcur_t));
+		ut_print_buf(stderr, cursor, sizeof(btr_pcur_t));
 		if (cursor->trx_if_known) {
 			trx_print(stderr, cursor->trx_if_known, 0);
 		}

os/os0sync.c

@@ -642,8 +642,7 @@ os_fast_mutex_free(
 "InnoDB: pthread_mutex_destroy().\n", (ulint)ret);
 		fprintf(stderr,
 "InnoDB: Byte contents of the pthread mutex at %p:\n", fast_mutex);
-		ut_print_buf(stderr, (const byte*)fast_mutex,
-						sizeof(os_fast_mutex_t));
+		ut_print_buf(stderr, fast_mutex, sizeof(os_fast_mutex_t));
 		fprintf(stderr, "\n");
 	}
 #endif