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/arch-x86/asm/mc146818rtc_32.h b/libc/kernel/arch-x86/asm/mc146818rtc_32.h
index b6af33a..899d608 100644
--- a/libc/kernel/arch-x86/asm/mc146818rtc_32.h
+++ b/libc/kernel/arch-x86/asm/mc146818rtc_32.h
@@ -7,44 +7,38 @@
  ***   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 _ASM_MC146818RTC_H
 #define _ASM_MC146818RTC_H
+
 #include <asm/io.h>
 #include <asm/system.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <asm/processor.h>
 #include <linux/mc146818rtc.h>
+
 #ifndef RTC_PORT
 #define RTC_PORT(x) (0x70 + (x))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTC_ALWAYS_BCD 1  
 #endif
+
 #ifdef __HAVE_ARCH_CMPXCHG
+
 #include <linux/smp.h>
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define lock_cmos_prefix(reg)   do {   unsigned long cmos_flags;   local_irq_save(cmos_flags);   lock_cmos(reg)
 #define lock_cmos_suffix(reg)   unlock_cmos();   local_irq_restore(cmos_flags);   } while (0)
 #else
 #define lock_cmos_prefix(reg) do {} while (0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define lock_cmos_suffix(reg) do {} while (0)
 #define lock_cmos(reg)
 #define unlock_cmos()
 #define do_i_have_lock_cmos() 0
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define current_lock_cmos_reg() 0
 #endif
 #define CMOS_READ(addr) rtc_cmos_read(addr)
 #define CMOS_WRITE(val, addr) rtc_cmos_write(val, addr)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+
 #define RTC_IRQ 8
+
 #endif