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/in_route.h b/libc/kernel/common/linux/in_route.h
index 0c8ca25..34e14d6 100644
--- a/libc/kernel/common/linux/in_route.h
+++ b/libc/kernel/common/linux/in_route.h
@@ -7,39 +7,35 @@
  ***   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_IN_ROUTE_H
 #define _LINUX_IN_ROUTE_H
+
 #define RTCF_DEAD RTNH_F_DEAD
 #define RTCF_ONLINK RTNH_F_ONLINK
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define RTCF_NOPMTUDISC RTM_F_NOPMTUDISC
+
 #define RTCF_NOTIFY 0x00010000
 #define RTCF_DIRECTDST 0x00020000  
 #define RTCF_REDIRECTED 0x00040000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTCF_TPROXY 0x00080000  
+
 #define RTCF_FAST 0x00200000  
 #define RTCF_MASQ 0x00400000  
 #define RTCF_SNAT 0x00800000  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTCF_DOREDIRECT 0x01000000
 #define RTCF_DIRECTSRC 0x04000000
 #define RTCF_DNAT 0x08000000
 #define RTCF_BROADCAST 0x10000000
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTCF_MULTICAST 0x20000000
 #define RTCF_REJECT 0x40000000  
 #define RTCF_LOCAL 0x80000000
+
 #define RTCF_NAT (RTCF_DNAT|RTCF_SNAT)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define RT_TOS(tos) ((tos)&IPTOS_TOS_MASK)
+
 #endif
+