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/raid/md.h b/libc/kernel/common/linux/raid/md.h
index 7e9bfc5..d609c06 100644
--- a/libc/kernel/common/linux/raid/md.h
+++ b/libc/kernel/common/linux/raid/md.h
@@ -7,52 +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 _MD_H
 #define _MD_H
+
 #include <linux/blkdev.h>
 #include <asm/semaphore.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/major.h>
 #include <linux/ioctl.h>
 #include <linux/types.h>
 #include <linux/bitops.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/module.h>
 #include <linux/hdreg.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include <net/checksum.h>
 #include <linux/random.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/kernel_stat.h>
 #include <asm/io.h>
 #include <linux/completion.h>
 #include <linux/mempool.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/list.h>
 #include <linux/reboot.h>
 #include <linux/vmalloc.h>
 #include <linux/blkpg.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <linux/bio.h>
+
 #include <linux/raid/md_p.h>
 #include <linux/raid/md_u.h>
 #include <linux/raid/md_k.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define MD_MAJOR_VERSION 0
 #define MD_MINOR_VERSION 90
+
 #define MD_PATCHLEVEL_VERSION 3
+
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+