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/common/linux/efs_dir.h b/libc/kernel/common/linux/efs_dir.h
index 40991a3..5be2762 100644
--- a/libc/kernel/common/linux/efs_dir.h
+++ b/libc/kernel/common/linux/efs_dir.h
@@ -7,40 +7,39 @@
  ***   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 __EFS_DIR_H__
 #define __EFS_DIR_H__
+
 #define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS
 #define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 struct efs_dentry {
  __be32 inode;
  unsigned char namelen;
  char name[3];
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
+
 #define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1)
 #define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1)
+
 #define EFS_DIRBLK_HEADERSIZE 4
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define EFS_DIRBLK_MAGIC 0xbeef  
+
 struct efs_dir {
  __be16 magic;
  unsigned char firstused;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned char slots;
+
  unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE];
 };
+
 #define EFS_MAXENTS   ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) /   (EFS_DENTSIZE + sizeof(char)))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot])
+
 #define EFS_REALOFF(offset) ((offset << 1))
+
 #endif
+