Index: lib/Tooling/JSONCompilationDatabase.cpp
===================================================================
--- lib/Tooling/JSONCompilationDatabase.cpp
+++ lib/Tooling/JSONCompilationDatabase.cpp
@@ -219,7 +219,6 @@
                                   std::vector<CompileCommand> &Commands) const {
   for (int I = 0, E = CommandsRef.size(); I != E; ++I) {
     SmallString<8> DirectoryStorage;
-    SmallString<1024> CommandStorage;
     Commands.emplace_back(
       CommandsRef[I].first->getValue(DirectoryStorage),
       CommandsRef[I].second);