Revert changes to Paths.cpp

Author: mcbarton

lib/Interpreter/Paths.cpp

@@ -175,6 +175,12 @@ void CopyIncludePaths(const clang::HeaderSearchOptions& Opts,
       if (withFlags) incpaths.push_back("-isystem");
       break;
 
+    case frontend::IndexHeaderMap:
+      if (!withSystem) continue;
+      if (withFlags) incpaths.push_back("-index-header-map");
+      if (withFlags) incpaths.push_back(E.IsFramework? "-F" : "-I");
+      break;
+
     case frontend::CSystem:
       if (!withSystem) continue;
       if (withFlags) incpaths.push_back("-c-isystem");