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/seqlock.h b/libc/kernel/common/linux/seqlock.h
index 713bafa..a1e05d4 100644
--- a/libc/kernel/common/linux/seqlock.h
+++ b/libc/kernel/common/linux/seqlock.h
@@ -7,44 +7,36 @@
  ***   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_SEQLOCK_H
 #define __LINUX_SEQLOCK_H
+
 #include <linux/spinlock.h>
 #include <linux/preempt.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 typedef struct {
  unsigned sequence;
  spinlock_t lock;
 } seqlock_t;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __SEQLOCK_UNLOCKED(lockname)   { 0, __SPIN_LOCK_UNLOCKED(lockname) }
+
 #define SEQLOCK_UNLOCKED   __SEQLOCK_UNLOCKED(old_style_seqlock_init)
+
 #define seqlock_init(x)   do { *(x) = (seqlock_t) __SEQLOCK_UNLOCKED(x); } while (0)
+
 #define DEFINE_SEQLOCK(x)   seqlock_t x = __SEQLOCK_UNLOCKED(x)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-typedef struct seqcount {
- unsigned sequence;
-} seqcount_t;
+
 #define SEQCNT_ZERO { 0 }
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define seqcount_init(x) do { *(x) = (seqcount_t) SEQCNT_ZERO; } while (0)
+
 #define write_seqlock_irqsave(lock, flags)   do { local_irq_save(flags); write_seqlock(lock); } while (0)
 #define write_seqlock_irq(lock)   do { local_irq_disable(); write_seqlock(lock); } while (0)
 #define write_seqlock_bh(lock)   do { local_bh_disable(); write_seqlock(lock); } while (0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define write_sequnlock_irqrestore(lock, flags)   do { write_sequnlock(lock); local_irq_restore(flags); } while(0)
 #define write_sequnlock_irq(lock)   do { write_sequnlock(lock); local_irq_enable(); } while(0)
 #define write_sequnlock_bh(lock)   do { write_sequnlock(lock); local_bh_enable(); } while(0)
 #define read_seqbegin_irqsave(lock, flags)   ({ local_irq_save(flags); read_seqbegin(lock); })
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define read_seqretry_irqrestore(lock, iv, flags)   ({   int ret = read_seqretry(lock, iv);   local_irq_restore(flags);   ret;   })
 #endif