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/compiler-gcc.h b/libc/kernel/common/linux/compiler-gcc.h
index 1064868..0dd4a62 100644
--- a/libc/kernel/common/linux/compiler-gcc.h
+++ b/libc/kernel/common/linux/compiler-gcc.h
@@ -7,23 +7,16 @@
  ***   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!
- ***
  ****************************************************************************
  ****************************************************************************/
 #define barrier() __asm__ __volatile__("": : :"memory")
+
 #define RELOC_HIDE(ptr, off)   ({ unsigned long __ptr;   __asm__ ("" : "=r"(__ptr) : "0"(ptr));   (typeof(ptr)) (__ptr + (off)); })
+
 #define inline inline __attribute__((always_inline))
 #define __inline__ __inline__ __attribute__((always_inline))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __inline __inline __attribute__((always_inline))
 #define __deprecated __attribute__((deprecated))
 #define noinline __attribute__((noinline))
 #define __attribute_pure__ __attribute__((pure))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __attribute_const__ __attribute__((__const__))