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/omap24xx.h b/libc/kernel/arch-arm/asm/arch/omap24xx.h
index adc60eb..37def2f 100644
--- a/libc/kernel/arch-arm/asm/arch/omap24xx.h
+++ b/libc/kernel/arch-arm/asm/arch/omap24xx.h
@@ -7,28 +7,24 @@
  ***   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_OMAP24XX_H
 #define __ASM_ARCH_OMAP24XX_H
+
 #define L4_24XX_BASE 0x48000000
 #define L3_24XX_BASE 0x68000000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define OMAP24XX_IC_BASE (L4_24XX_BASE + 0xfe000)
 #define VA_IC_BASE IO_ADDRESS(OMAP24XX_IC_BASE)
 #define OMAP24XX_IVA_INTC_BASE 0x40000000
 #define IRQ_SIR_IRQ 0x0040
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define OMAP24XX_32KSYNCT_BASE (L4_24XX_BASE + 0x4000)
 #define OMAP24XX_PRCM_BASE (L4_24XX_BASE + 0x8000)
 #define OMAP24XX_SDRC_BASE (L3_24XX_BASE + 0x9000)
+
 #define OMAP242X_CONTROL_STATUS (L4_24XX_BASE + 0x2f8)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #endif
+