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

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-mc

Author: Mehdi Amini (joker-eph)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->98158

bot is broken.


---
Full diff: https://github.com/llvm/llvm-project/pull/98494.diff


2 Files Affected:

- (modified) llvm/include/llvm/MC/MCELFObjectWriter.h (-2) 
- (modified) llvm/test/MC/ELF/osabi.s (-4) 


``````````diff
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

``````````

</details>


https://github.com/llvm/llvm-project/pull/98494