diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 3df8870..aa411c0 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -101,8 +101,7 @@
       CCPrintOptions(false), CCPrintHeaders(false), CCLogDiagnostics(false),
       CCGenDiagnostics(false), TargetTriple(TargetTriple),
       CCCGenericGCCName(""), Saver(Alloc), CheckInputsExist(true),
-      CCCUsePCH(true), GenReproducer(false),
-      SuppressMissingInputWarning(false) {
+      GenReproducer(false), SuppressMissingInputWarning(false) {
 
   // Provide a sane fallback if no VFS is specified.
   if (!this->VFS)
@@ -1007,8 +1006,6 @@
   CCCPrintBindings = Args.hasArg(options::OPT_ccc_print_bindings);
   if (const Arg *A = Args.getLastArg(options::OPT_ccc_gcc_name))
     CCCGenericGCCName = A->getValue();
-  CCCUsePCH =
-      Args.hasFlag(options::OPT_ccc_pch_is_pch, options::OPT_ccc_pch_is_pth);
   GenReproducer = Args.hasFlag(options::OPT_gen_reproducer,
                                options::OPT_fno_crash_diagnostics,
                                !!::getenv("FORCE_CLANG_DIAGNOSTICS_CRASH"));