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/statfs.h b/libc/kernel/arch-arm/asm/statfs.h
index 431fbcc..7963eab 100644
--- a/libc/kernel/arch-arm/asm/statfs.h
+++ b/libc/kernel/arch-arm/asm/statfs.h
@@ -7,48 +7,37 @@
  ***   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 _ASMARM_STATFS_H
 #define _ASMARM_STATFS_H
+
 struct statfs {
  __u32 f_type;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 f_bsize;
  __u32 f_blocks;
  __u32 f_bfree;
  __u32 f_bavail;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 f_files;
  __u32 f_ffree;
  __kernel_fsid_t f_fsid;
  __u32 f_namelen;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 f_frsize;
  __u32 f_spare[5];
 };
+
 struct statfs64 {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 f_type;
  __u32 f_bsize;
  __u64 f_blocks;
  __u64 f_bfree;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u64 f_bavail;
  __u64 f_files;
  __u64 f_ffree;
  __kernel_fsid_t f_fsid;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 f_namelen;
  __u32 f_frsize;
  __u32 f_spare[5];
 } __attribute__ ((packed,aligned(4)));
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #endif