[HLSL] Remove overridden -S

The cc1 option -S (https://reviews.llvm.org/D124983) is overridden by
the latter -emit-llvm.

Author: MaskRay

clang/lib/Driver/ToolChains/HLSL.cpp

@@ -218,8 +218,7 @@ HLSLToolChain::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch,
       }
     }
     if (A->getOption().getID() == options::OPT_emit_pristine_llvm) {
-      // Translate fcgl into -S -emit-llvm and -disable-llvm-passes.
-      DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_S));
+      // Translate -fcgl into -emit-llvm and -disable-llvm-passes.
       DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_emit_llvm));
       DAL->AddFlagArg(nullptr,
                       Opts.getOption(options::OPT_disable_llvm_passes));

clang/test/Driver/dxc_fcgl.hlsl

@@ -1,6 +1,6 @@
 // RUN: not %clang_dxc -fcgl -T lib_6_7 foo.hlsl -### %s 2>&1 | FileCheck %s
 
-// Make sure fcgl option flag which translated into "-S" "-emit-llvm" "-disable-llvm-passes".
+// Make sure fcgl option flag which translated into "-emit-llvm" "-disable-llvm-passes".
 // CHECK:"-S"
 // CHECK-SAME:"-emit-llvm" "-disable-llvm-passes"