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/ublock.h b/libc/kernel/common/linux/ublock.h
index 59a9aab..aa19a81 100644
--- a/libc/kernel/common/linux/ublock.h
+++ b/libc/kernel/common/linux/ublock.h
@@ -7,80 +7,75 @@
  ***   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 __UBLOCK_H_
 #define __UBLOCK_H_
+
 #include <linux/types.h>
+
 #define UBLOCK_VERSION 0
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 enum {
  UBLOCK_INIT_IN = 0,
  UBLOCK_INIT_OUT = 1,
  UBLOCK_READY_IN = 2,
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  UBLOCK_READY_OUT = 3,
  UBLOCK_READ_IN = 4,
  UBLOCK_READ_OUT = 5,
  UBLOCK_WRITE_IN = 6,
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  UBLOCK_WRITE_OUT = 7,
 };
+
 struct ublock_in_header {
  __u32 seq;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 opcode;
 };
+
 struct ublock_out_header {
  __u32 seq;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 opcode;
 };
+
 struct ublock_init_in {
  __u32 version;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 max_buf;
  __u32 index;
 };
+
 struct ublock_init_out {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 version;
  __u32 max_buf;
  __u64 size;
 };
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 struct ublock_ready_in {
  __u32 _unused;
 };
+
 struct ublock_ready_out {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 _unused;
 };
+
 struct ublock_read_in {
  __u64 offset;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u64 length;
 };
+
 struct ublock_read_out {
  __s32 status;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u8 data[];
 };
+
 struct ublock_write_in {
  __u64 offset;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u64 length;
  __u8 data[];
 };
+
 struct ublock_write_out {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __s32 status;
 };
+
 #endif
+