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/unaligned.h b/libc/kernel/arch-arm/asm/unaligned.h
index 2e6612a..8b9b096 100644
--- a/libc/kernel/arch-arm/asm/unaligned.h
+++ b/libc/kernel/arch-arm/asm/unaligned.h
@@ -7,35 +7,32 @@
  ***   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_ARM_UNALIGNED_H
 #define __ASM_ARM_UNALIGNED_H
+
 #include <asm/types.h>
+
 #define __get_unaligned_2_le(__p)   (__p[0] | __p[1] << 8)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __get_unaligned_2_be(__p)   (__p[0] << 8 | __p[1])
+
 #define __get_unaligned_4_le(__p)   (__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
+
 #define __get_unaligned_4_be(__p)   (__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
+
 #define __get_unaligned_le(ptr)   ({   __typeof__(*(ptr)) __v;   __u8 *__p = (__u8 *)(ptr);   switch (sizeof(*(ptr))) {   case 1: __v = *(ptr); break;   case 2: __v = __get_unaligned_2_le(__p); break;   case 4: __v = __get_unaligned_4_le(__p); break;   case 8: {   unsigned int __v1, __v2;   __v2 = __get_unaligned_4_le((__p+4));   __v1 = __get_unaligned_4_le(__p);   __v = ((unsigned long long)__v2 << 32 | __v1);   }   break;   default: __v = __bug_unaligned_x(__p); break;   }   __v;   })
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __get_unaligned_be(ptr)   ({   __typeof__(*(ptr)) __v;   __u8 *__p = (__u8 *)(ptr);   switch (sizeof(*(ptr))) {   case 1: __v = *(ptr); break;   case 2: __v = __get_unaligned_2_be(__p); break;   case 4: __v = __get_unaligned_4_be(__p); break;   case 8: {   unsigned int __v1, __v2;   __v2 = __get_unaligned_4_be(__p);   __v1 = __get_unaligned_4_be((__p+4));   __v = ((unsigned long long)__v2 << 32 | __v1);   }   break;   default: __v = __bug_unaligned_x(__p); break;   }   __v;   })
+
 #define __put_unaligned_le(val,ptr)   ({   switch (sizeof(*(ptr))) {   case 1:   *(ptr) = (val);   break;   case 2: __put_unaligned_2_le((val),(__u8 *)(ptr));   break;   case 4: __put_unaligned_4_le((val),(__u8 *)(ptr));   break;   case 8: __put_unaligned_8_le((val),(__u8 *)(ptr));   break;   default: __bug_unaligned_x(ptr);   break;   }   (void) 0;   })
 #define __put_unaligned_be(val,ptr)   ({   switch (sizeof(*(ptr))) {   case 1:   *(ptr) = (val);   break;   case 2: __put_unaligned_2_be((val),(__u8 *)(ptr));   break;   case 4: __put_unaligned_4_be((val),(__u8 *)(ptr));   break;   case 8: __put_unaligned_8_be((val),(__u8 *)(ptr));   break;   default: __bug_unaligned_x(ptr);   break;   }   (void) 0;   })
 #ifndef __ARMEB__
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define get_unaligned __get_unaligned_le
 #define put_unaligned __put_unaligned_le
 #else
 #define get_unaligned __get_unaligned_be
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define put_unaligned __put_unaligned_be
 #endif
 #endif