Revert "Update to v5.18 kernel headers."

Revert "Update to v5.18 kernel headers."

Revert submission 2106847-kernel_update

Reason for revert: b/234125620
Reverted Changes:
I5844ca1fc:Update to v5.18 kernel headers.
I5700813ee:Update to v5.18 kernel headers.
Bug: 234125620

Change-Id: I07a39aa9c01939455b5a2a9da5fc04be497ca399
diff --git a/libc/kernel/uapi/linux/elf.h b/libc/kernel/uapi/linux/elf.h
index 65ab245..7655f12 100644
--- a/libc/kernel/uapi/linux/elf.h
+++ b/libc/kernel/uapi/linux/elf.h
@@ -45,11 +45,9 @@
 #define PT_HIOS 0x6fffffff
 #define PT_LOPROC 0x70000000
 #define PT_HIPROC 0x7fffffff
-#define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550)
+#define PT_GNU_EH_FRAME 0x6474e550
+#define PT_GNU_PROPERTY 0x6474e553
 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
-#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
-#define PT_GNU_PROPERTY (PT_LOOS + 0x474e553)
-#define PT_AARCH64_MEMTAG_MTE (PT_LOPROC + 0x2)
 #define PN_XNUM 0xffff
 #define ET_NONE 0
 #define ET_REL 1