signal: Remove ifdefs for BUS_MCEERR_AR and BUS_MCEERR_AO

With the recent architecture cleanups these si_codes are always
defined so there is no need to test for them.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/fs/signalfd.c b/fs/signalfd.c
index d2187a8..ff302bf 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -117,26 +117,15 @@
 #ifdef __ARCH_SI_TRAPNO
 		err |= __put_user(kinfo->si_trapno, &uinfo->ssi_trapno);
 #endif
-#ifdef BUS_MCEERR_AO
 		/*
 		 * Other callers might not initialize the si_lsb field,
 		 * so check explicitly for the right codes here.
 		 */
 		if (kinfo->si_signo == SIGBUS &&
-		     kinfo->si_code == BUS_MCEERR_AO)
+		    ((kinfo->si_code == BUS_MCEERR_AR) ||
+		     (kinfo->si_code == BUS_MCEERR_AO)))
 			err |= __put_user((short) kinfo->si_addr_lsb,
 					  &uinfo->ssi_addr_lsb);
-#endif
-#ifdef BUS_MCEERR_AR
-		/*
-		 * Other callers might not initialize the si_lsb field,
-		 * so check explicitly for the right codes here.
-		 */
-		if (kinfo->si_signo == SIGBUS &&
-		    kinfo->si_code == BUS_MCEERR_AR)
-			err |= __put_user((short) kinfo->si_addr_lsb,
-					  &uinfo->ssi_addr_lsb);
-#endif
 		break;
 	case SIL_CHLD:
 		err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);