Revert "[lldb][ClangExpressionParser] Set BuiltinHeadersInSystemModules depending on SDK version (#102309)"

This reverts commit 1cbcf74083e92021472ec9644b88418f377ce550.

unittests do not build because liblldbPluginExpressionParserClang.a now
depends on liblldbPluginPlatformMacOSX.a when built on macOS, reverting
until we can straighten out the dependency.

1 files changed, 0 insertions, 21 deletions

diff --git a/lldb/source/Utility/XcodeSDK.cpp b/lldb/source/Utility/XcodeSDK.cpp
index b7d51f7e0827..712d611db28f 100644
--- a/lldb/source/Utility/XcodeSDK.cpp
+++ b/lldb/source/Utility/XcodeSDK.cpp
@@ -259,27 +259,6 @@ bool XcodeSDK::SupportsSwift() const {
   }
 }
 
-bool XcodeSDK::SDKSupportsBuiltinModules(const llvm::Triple &target_triple,
-                                         llvm::VersionTuple sdk_version) {
-  using namespace llvm;
-
-  switch (target_triple.getOS()) {
-  case Triple::OSType::MacOSX:
-    return sdk_version >= VersionTuple(15U);
-  case Triple::OSType::IOS:
-    return sdk_version >= VersionTuple(18U);
-  case Triple::OSType::TvOS:
-    return sdk_version >= VersionTuple(18U);
-  case Triple::OSType::WatchOS:
-    return sdk_version >= VersionTuple(11U);
-  case Triple::OSType::XROS:
-    return sdk_version >= VersionTuple(2U);
-  default:
-    // New SDKs support builtin modules from the start.
-    return true;
-  }
-}
-
 bool XcodeSDK::SDKSupportsModules(XcodeSDK::Type desired_type,
                                   const FileSpec &sdk_path) {
   ConstString last_path_component = sdk_path.GetFilename();