Revert "[clang][driver] Fix -print-target-triple OS version for apple targets" (#104563)

This reverts #104037 /
7227b44.

This change had the unintended consequence of making e.g. `clang -target
armv7-windows-gnu --print-target-triple` output
`thumbv7-unknown-windows-gnu` rather than `armv7-unknown-windows-gnu`.

Author: mstorsjo

clang/lib/Driver/Driver.cpp

@@ -2271,7 +2271,8 @@ bool Driver::HandleImmediateArgs(Compilation &C) {
     return false;
   }
 
-  auto initializeTargets = [&]() {
+  if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) {
+    ToolChain::RuntimeLibType RLT = TC.GetRuntimeLibType(C.getArgs());
     const llvm::Triple Triple(TC.ComputeEffectiveClangTriple(C.getArgs()));
     // The 'Darwin' toolchain is initialized only when its arguments are
     // computed. Get the default arguments for OFK_None to ensure that
@@ -2281,12 +2282,6 @@ bool Driver::HandleImmediateArgs(Compilation &C) {
     // FIXME: For some more esoteric targets the default toolchain is not the
     //        correct one.
     C.getArgsForToolChain(&TC, Triple.getArchName(), Action::OFK_None);
-    return Triple;
-  };
-
-  if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) {
-    ToolChain::RuntimeLibType RLT = TC.GetRuntimeLibType(C.getArgs());
-    const llvm::Triple Triple = initializeTargets();
     RegisterEffectiveTriple TripleRAII(TC, Triple);
     switch (RLT) {
     case ToolChain::RLT_CompilerRT:
@@ -2330,9 +2325,7 @@ bool Driver::HandleImmediateArgs(Compilation &C) {
   }
 
   if (C.getArgs().hasArg(options::OPT_print_target_triple)) {
-    initializeTargets();
-    llvm::Triple Triple(TC.ComputeEffectiveClangTriple(C.getArgs()));
-    llvm::outs() << Triple.getTriple() << "\n";
+    llvm::outs() << TC.getTripleString() << "\n";
     return false;
   }