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/fcntl.h b/libc/kernel/common/linux/fcntl.h
index 5e3fcd6..323e87a 100644
--- a/libc/kernel/common/linux/fcntl.h
+++ b/libc/kernel/common/linux/fcntl.h
@@ -7,34 +7,29 @@
  ***   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_FCNTL_H
 #define _LINUX_FCNTL_H
+
 #include <asm/fcntl.h>
+
 #define F_SETLEASE (F_LINUX_SPECIFIC_BASE+0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define F_GETLEASE (F_LINUX_SPECIFIC_BASE+1)
+
 #define F_NOTIFY (F_LINUX_SPECIFIC_BASE+2)
+
 #define DN_ACCESS 0x00000001  
 #define DN_MODIFY 0x00000002  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DN_CREATE 0x00000004  
 #define DN_DELETE 0x00000008  
 #define DN_RENAME 0x00000010  
 #define DN_ATTRIB 0x00000020  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DN_MULTISHOT 0x80000000  
+
 #define AT_FDCWD -100  
 #define AT_SYMLINK_NOFOLLOW 0x100  
 #define AT_REMOVEDIR 0x200  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define AT_SYMLINK_FOLLOW 0x400  
+
 #endif