Revert "Update bionic kernel headers using update_all.py"

This reverts commit 94a85f663694e1869acb1c2e8a3c374a6fa3ab86

There is a smoke test failure for Prime but Crespo/Stingray are fine. Will revert the change for now until further investigation is made.
diff --git a/libc/kernel/arch-arm/asm/arch/gpio.h b/libc/kernel/arch-arm/asm/arch/gpio.h
index c995a71..332246d 100644
--- a/libc/kernel/arch-arm/asm/arch/gpio.h
+++ b/libc/kernel/arch-arm/asm/arch/gpio.h
@@ -7,49 +7,43 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
- ***   To edit the content of this header, modify the corresponding
- ***   source file (e.g. under external/kernel-headers/original/) then
- ***   run bionic/libc/kernel/tools/update_all.py
- ***
- ***   Any manual change here will be lost the next time this script will
- ***   be run. You've been warned!
- ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef __ASM_ARCH_OMAP_GPIO_H
 #define __ASM_ARCH_OMAP_GPIO_H
+
 #include <asm/hardware.h>
 #include <asm/arch/irqs.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <asm/io.h>
+
 #define OMAP_MPUIO_BASE (void __iomem *)0xfffb5000
+
 #define OMAP_MPUIO_INPUT_LATCH 0x00
 #define OMAP_MPUIO_OUTPUT 0x04
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define OMAP_MPUIO_IO_CNTL 0x08
 #define OMAP_MPUIO_KBR_LATCH 0x10
 #define OMAP_MPUIO_KBC 0x14
 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c
 #define OMAP_MPUIO_KBD_INT 0x20
 #define OMAP_MPUIO_GPIO_INT 0x24
 #define OMAP_MPUIO_KBD_MASKIT 0x28
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define OMAP_MPUIO_GPIO_MASKIT 0x2c
 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30
 #define OMAP_MPUIO_LATCH 0x34
+
 #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES)
+
 #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ?   IH_MPUIO_BASE + ((nr) & 0x0f) :   IH_GPIO_BASE + (nr))
+
 struct omap_machine_gpio_bank {
  int start;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  int end;
+
  void (*set_gpio_direction)(int gpio, int is_input);
  void (*set_gpio_dataout)(int gpio, int enable);
  int (*get_gpio_datain)(int gpio);
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
+
 #endif