Remove the -ccc-echo option that is now unused.

llvm-svn: 186970
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 98b87be..91b6bc1 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -55,7 +55,7 @@
     DriverTitle("clang LLVM compiler"),
     CCPrintOptionsFilename(0), CCPrintHeadersFilename(0),
     CCLogDiagnosticsFilename(0),
-    CCCEcho(false), CCCPrintBindings(false),
+    CCCPrintBindings(false),
     CCPrintOptions(false), CCPrintHeaders(false), CCLogDiagnostics(false),
     CCGenDiagnostics(false), CCCGenericGCCName(""), CheckInputsExist(true),
     CCCUsePCH(true), SuppressMissingInputWarning(false) {
@@ -300,7 +300,6 @@
   CCCPrintOptions = Args->hasArg(options::OPT_ccc_print_options);
   CCCPrintActions = Args->hasArg(options::OPT_ccc_print_phases);
   CCCPrintBindings = Args->hasArg(options::OPT_ccc_print_bindings);
-  CCCEcho = Args->hasArg(options::OPT_ccc_echo);
   if (const Arg *A = Args->getLastArg(options::OPT_ccc_gcc_name))
     CCCGenericGCCName = A->getValue();
   CCCUsePCH = Args->hasFlag(options::OPT_ccc_pch_is_pch,