[arcmt] Remove '-arcmt-modify-in-memory', it turned out less useful than we hoped it would be.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133315 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index b72f12a..804094b 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1391,8 +1391,7 @@
 
   if (!Args.hasArg(options::OPT_fno_objc_arc)) {
     if (const Arg *A = Args.getLastArg(options::OPT_ccc_arrmt_check,
-                                       options::OPT_ccc_arrmt_modify,
-                                       options::OPT_ccc_arrmt_modify_in_memory)) {
+                                       options::OPT_ccc_arrmt_modify)) {
       switch (A->getOption().getID()) {
       default:
         llvm_unreachable("missed a case");
@@ -1402,9 +1401,6 @@
       case options::OPT_ccc_arrmt_modify:
         CmdArgs.push_back("-arcmt-modify");
         break;
-      case options::OPT_ccc_arrmt_modify_in_memory:
-        CmdArgs.push_back("-arcmt-modify-in-memory");
-        break;
       }
     }
   }