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/spinlock_api_up.h b/libc/kernel/common/linux/spinlock_api_up.h
index 9adb39a..c9a5c01 100644
--- a/libc/kernel/common/linux/spinlock_api_up.h
+++ b/libc/kernel/common/linux/spinlock_api_up.h
@@ -7,68 +7,63 @@
  ***   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_SPINLOCK_API_UP_H
 #define __LINUX_SPINLOCK_API_UP_H
+
 #ifndef __LINUX_SPINLOCK_H
 #error "please don't include this file directly"
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
+
 #define in_lock_functions(ADDR) 0
+
 #define assert_spin_locked(lock) do { (void)(lock); } while (0)
+
 #define __LOCK(lock)   do { preempt_disable(); __acquire(lock); (void)(lock); } while (0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __LOCK_BH(lock)   do { local_bh_disable(); __LOCK(lock); } while (0)
+
 #define __LOCK_IRQ(lock)   do { local_irq_disable(); __LOCK(lock); } while (0)
+
 #define __LOCK_IRQSAVE(lock, flags)   do { local_irq_save(flags); __LOCK(lock); } while (0)
+
 #define __UNLOCK(lock)   do { preempt_enable(); __release(lock); (void)(lock); } while (0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define __UNLOCK_BH(lock)   do { preempt_enable_no_resched(); local_bh_enable(); __release(lock); (void)(lock); } while (0)
+
 #define __UNLOCK_IRQ(lock)   do { local_irq_enable(); __UNLOCK(lock); } while (0)
+
 #define __UNLOCK_IRQRESTORE(lock, flags)   do { local_irq_restore(flags); __UNLOCK(lock); } while (0)
+
 #define _spin_lock(lock) __LOCK(lock)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _spin_lock_nested(lock, subclass) __LOCK(lock)
 #define _read_lock(lock) __LOCK(lock)
 #define _write_lock(lock) __LOCK(lock)
 #define _spin_lock_bh(lock) __LOCK_BH(lock)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _read_lock_bh(lock) __LOCK_BH(lock)
 #define _write_lock_bh(lock) __LOCK_BH(lock)
 #define _spin_lock_irq(lock) __LOCK_IRQ(lock)
 #define _read_lock_irq(lock) __LOCK_IRQ(lock)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _write_lock_irq(lock) __LOCK_IRQ(lock)
 #define _spin_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
 #define _read_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
 #define _write_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _spin_trylock(lock) ({ __LOCK(lock); 1; })
 #define _read_trylock(lock) ({ __LOCK(lock); 1; })
 #define _write_trylock(lock) ({ __LOCK(lock); 1; })
 #define _spin_trylock_bh(lock) ({ __LOCK_BH(lock); 1; })
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _spin_unlock(lock) __UNLOCK(lock)
 #define _read_unlock(lock) __UNLOCK(lock)
 #define _write_unlock(lock) __UNLOCK(lock)
 #define _spin_unlock_bh(lock) __UNLOCK_BH(lock)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _write_unlock_bh(lock) __UNLOCK_BH(lock)
 #define _read_unlock_bh(lock) __UNLOCK_BH(lock)
 #define _spin_unlock_irq(lock) __UNLOCK_IRQ(lock)
 #define _read_unlock_irq(lock) __UNLOCK_IRQ(lock)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _write_unlock_irq(lock) __UNLOCK_IRQ(lock)
 #define _spin_unlock_irqrestore(lock, flags) __UNLOCK_IRQRESTORE(lock, flags)
 #define _read_unlock_irqrestore(lock, flags) __UNLOCK_IRQRESTORE(lock, flags)
 #define _write_unlock_irqrestore(lock, flags) __UNLOCK_IRQRESTORE(lock, flags)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #endif