[llvm] Remove iOS 5 check for tailcalls on ARM (PR #133354)

[via llvm-commits]

https://github.com/Un1q32 updated https://github.com/llvm/llvm-project/pull/133354

>From a5c18987dc78a40ae5041a6f8c0161e6aa097fcb Mon Sep 17 00:00:00 2001
From: Un1q32 <joey.t.reinhart at gmail.com>
Date: Fri, 28 Mar 2025 21:13:49 +0000
Subject: [PATCH] Remove iOS 5 check for tailcalls on ARM

---
 llvm/lib/Target/ARM/ARMSubtarget.cpp | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 893084785e6f0..759070c6f08da 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -226,9 +226,6 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
 
   SupportsTailCall = !isThumb1Only() || hasV8MBaselineOps();
 
-  if (isTargetMachO() && isTargetIOS() && getTargetTriple().isOSVersionLT(5, 0))
-    SupportsTailCall = false;
-
   switch (IT) {
   case DefaultIT:
     RestrictIT = false;