omap: mux: Remove old mux code for 34xx

Remove old mux code for 34xx

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index ac9ea60..a8749e8 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -33,6 +33,7 @@
 #include <plat/sdrc.h>
 #include <plat/gpmc.h>
 #include <plat/serial.h>
+#include <plat/mux.h>
 #include <plat/vram.h>
 
 #include "clock.h"