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/route.h b/libc/kernel/common/linux/route.h
index 41e5a08..cdb8744 100644
--- a/libc/kernel/common/linux/route.h
+++ b/libc/kernel/common/linux/route.h
@@ -7,53 +7,43 @@
  ***   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_ROUTE_H
 #define _LINUX_ROUTE_H
+
 #include <linux/if.h>
 #include <linux/compiler.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 struct rtentry
 {
  unsigned long rt_pad1;
  struct sockaddr rt_dst;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct sockaddr rt_gateway;
  struct sockaddr rt_genmask;
  unsigned short rt_flags;
  short rt_pad2;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long rt_pad3;
  void *rt_pad4;
  short rt_metric;
  char __user *rt_dev;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long rt_mtu;
 #define rt_mss rt_mtu  
  unsigned long rt_window;
  unsigned short rt_irtt;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
+
 #define RTF_UP 0x0001  
 #define RTF_GATEWAY 0x0002  
 #define RTF_HOST 0x0004  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTF_REINSTATE 0x0008  
 #define RTF_DYNAMIC 0x0010  
 #define RTF_MODIFIED 0x0020  
 #define RTF_MTU 0x0040  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTF_MSS RTF_MTU  
 #define RTF_WINDOW 0x0080  
 #define RTF_IRTT 0x0100  
 #define RTF_REJECT 0x0200  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #endif
+