Index: sys/cam/ata/ata_da.c
===================================================================
--- sys/cam/ata/ata_da.c
+++ sys/cam/ata/ata_da.c
@@ -758,10 +758,6 @@
 static void		adasuspend(void *arg);
 static void		adaresume(void *arg);
 
-#ifndef	ADA_DEFAULT_LEGACY_ALIASES
-#define	ADA_DEFAULT_LEGACY_ALIASES	1
-#endif
-
 #ifndef ADA_DEFAULT_TIMEOUT
 #define ADA_DEFAULT_TIMEOUT 30	/* Timeout in seconds */
 #endif