ARM: ux500: delete oldschool pin defines

The pin definition file dates back to a time before the pin
control subsystem. The functions called inside that pin control
driver are now deleted. Let's get rid of this file.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/board-mop500-audio.c

@@ -17,7 +17,6 @@
 #include "ste-dma40-db8500.h"
 #include "board-mop500.h"
 #include "devices-db8500.h"
-#include "pins-db8500.h"
 
 static struct stedma40_chan_cfg msp0_dma_rx = {
 	.high_priority = true,

arch/arm/mach-ux500/board-mop500-pins.c

@@ -14,7 +14,6 @@
 
 #include <asm/mach-types.h>
 
-#include "pins-db8500.h"
 #include "board-mop500.h"
 
 enum custom_pin_cfg_t {