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/stat.h b/libc/kernel/common/linux/stat.h
index 5ab82f2..0d757f4 100644
--- a/libc/kernel/common/linux/stat.h
+++ b/libc/kernel/common/linux/stat.h
@@ -7,55 +7,48 @@
  ***   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 _LINUX_STAT_H
 #define _LINUX_STAT_H
+
 #if !defined(__GLIBC__) || __GLIBC__ < 2
+
 #define S_IFMT 00170000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_IFSOCK 0140000
 #define S_IFLNK 0120000
 #define S_IFREG 0100000
 #define S_IFBLK 0060000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_IFDIR 0040000
 #define S_IFCHR 0020000
 #define S_IFIFO 0010000
 #define S_ISUID 0004000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_ISGID 0002000
 #define S_ISVTX 0001000
+
 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+
 #define S_IRWXU 00700
 #define S_IRUSR 00400
 #define S_IWUSR 00200
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_IXUSR 00100
+
 #define S_IRWXG 00070
 #define S_IRGRP 00040
 #define S_IWGRP 00020
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_IXGRP 00010
+
 #define S_IRWXO 00007
 #define S_IROTH 00004
 #define S_IWOTH 00002
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define S_IXOTH 00001
+
 #endif
+
 #endif