Rip out flags for controlling C++ "production mode" separately.

This is old leftover cruft from the days when C++ was not yet ready
for prime time.

llvm-svn: 141063
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 6f49bec..e9ab78d 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -49,7 +49,7 @@
 Driver::Driver(StringRef ClangExecutable,
                StringRef DefaultHostTriple,
                StringRef DefaultImageName,
-               bool IsProduction, bool CXXIsProduction,
+               bool IsProduction,
                DiagnosticsEngine &Diags)
   : Opts(createDriverOptTable()), Diags(Diags),
     ClangExecutable(ClangExecutable), UseStdLib(true),
@@ -73,9 +73,6 @@
     CCCClangArchs.insert(llvm::Triple::x86);
     CCCClangArchs.insert(llvm::Triple::x86_64);
     CCCClangArchs.insert(llvm::Triple::arm);
-
-    if (!CXXIsProduction)
-      CCCUseClangCXX = false;
   }
 
   Name = llvm::sys::path::stem(ClangExecutable);