dmi: Remove nonsense guard; Makefile handles it

Change-Id: If4216be1f9ed308e4580c36d0356480e637ffc82
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/28715
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/dmi.c b/dmi.c
index 4137821..79321ce 100644
--- a/dmi.c
+++ b/dmi.c
@@ -34,8 +34,6 @@
 #include "flash.h"
 #include "programmer.h"
 
-#if defined(__i386__) || defined(__x86_64__)
-
 /* Enable SMBIOS decoding. Currently legacy DMI decoding is enough. */
 #define SM_SUPPORT 0
 
@@ -481,5 +479,3 @@
 
 	return 0;
 }
-
-#endif // defined(__i386__) || defined(__x86_64__)