Revert "Provide a -no-pedantic to cancel out -pedantic."  This needs to be designed
a bit further.  We may wish to just have -Wno flags to silence warnings, and not have a -no-pedantic.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158796 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index aff9688..e152b93 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -2034,8 +2034,7 @@
   }
 
   Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
-  if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false))
-    CmdArgs.push_back("-pedantic");
+  Args.AddLastArg(CmdArgs, options::OPT_pedantic);
   Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);
   Args.AddLastArg(CmdArgs, options::OPT_w);