[llvm] Revert "[MC] set OpenBSD's ELFOSABI by default" (PR #98494)

[Mehdi Amini via llvm-commits]

https://github.com/joker-eph created https://github.com/llvm/llvm-project/pull/98494

Reverts llvm/llvm-project#98158

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>From c8547d829c5a738a1fe37ff4ecea5c272cb2eaf0 Mon Sep 17 00:00:00 2001
From: Mehdi Amini <joker.eph at gmail.com>
Date: Thu, 11 Jul 2024 17:16:03 +0200
Subject: [PATCH] Revert "[MC] set OpenBSD's ELFOSABI by default (#98158)"

This reverts commit b64c1de714c50bec7493530446ebf5e540d5f96a.
---
 llvm/include/llvm/MC/MCELFObjectWriter.h | 2 --
 llvm/test/MC/ELF/osabi.s                 | 4 ----
 2 files changed, 6 deletions(-)

diff --git a/llvm/include/llvm/MC/MCELFObjectWriter.h b/llvm/include/llvm/MC/MCELFObjectWriter.h
index 12237094ad86a..d7c223cdcc07f 100644
--- a/llvm/include/llvm/MC/MCELFObjectWriter.h
+++ b/llvm/include/llvm/MC/MCELFObjectWriter.h
@@ -78,8 +78,6 @@ class MCELFObjectTargetWriter : public MCObjectTargetWriter {
         return ELF::ELFOSABI_FREEBSD;
       case Triple::Solaris:
         return ELF::ELFOSABI_SOLARIS;
-      case Triple::OpenBSD:
-        return ELF::ELFOSABI_OPENBSD;
       default:
         return ELF::ELFOSABI_NONE;
     }
diff --git a/llvm/test/MC/ELF/osabi.s b/llvm/test/MC/ELF/osabi.s
index 44912f4987c11..dc6ad2a349d75 100644
--- a/llvm/test/MC/ELF/osabi.s
+++ b/llvm/test/MC/ELF/osabi.s
@@ -10,7 +10,3 @@
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-freebsd %s | llvm-readobj -h - | \
 # RUN:   FileCheck %s --check-prefix=FREEBSD
 # FREEBSD: OS/ABI: FreeBSD
-
-# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-openbsd %s | llvm-readobj -h - | \
-# RUN:   FileCheck %s --check-prefix=OPENBSD
-# OPENBSD: OS/ABI: OpenBSD