ARM: OMAP2+: Remove legacy mux code for omap2

This is no longer needed as pins can be muxed using
pinctrl-single.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Makefile

@@ -66,8 +66,6 @@ obj-$(CONFIG_SOC_OMAP5)			+= omap4-restart.o
 obj-$(CONFIG_SOC_DRA7XX)		+= omap4-restart.o
 
 # Pin multiplexing
-obj-$(CONFIG_SOC_OMAP2420)		+= mux2420.o
-obj-$(CONFIG_SOC_OMAP2430)		+= mux2430.o
 obj-$(CONFIG_ARCH_OMAP3)		+= mux34xx.o
 
 # SMS/SDRC

arch/arm/mach-omap2/mux.h

@@ -7,8 +7,6 @@
  * published by the Free Software Foundation.
  */
 
-#include "mux2420.h"
-#include "mux2430.h"
 #include "mux34xx.h"
 
 #define OMAP_MUX_TERMINATOR	0xffff