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/wait.h b/libc/kernel/common/linux/wait.h
index 7eb2124..7d9aa68 100644
--- a/libc/kernel/common/linux/wait.h
+++ b/libc/kernel/common/linux/wait.h
@@ -7,30 +7,24 @@
  ***   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_WAIT_H
 #define _LINUX_WAIT_H
+
 #define WNOHANG 0x00000001
 #define WUNTRACED 0x00000002
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define WSTOPPED WUNTRACED
 #define WEXITED 0x00000004
 #define WCONTINUED 0x00000008
 #define WNOWAIT 0x01000000  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __WNOTHREAD 0x20000000  
 #define __WALL 0x40000000  
 #define __WCLONE 0x80000000  
+
 #define P_ALL 0
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define P_PID 1
 #define P_PGID 2
+
 #endif