message: [XLA] Remove the extra RunHloOptimization in InterpreterCompiler::RunBackend.
diff: @@ -83,8 +83,6 @@ StatusOr<std::unique_ptr<Executable>> InterpreterCompiler::RunBackend(
  VLOG(1) << "Run backend " << hlo_module->name();
  - TF_RETURN_IF_ERROR(RunHloOptimization(hlo_module.get()));
  -
  // Typically you would visit the HLO graph, building up a compiled equivalent
  // In this case we are using an HloEvaluator at execution time, so we don't
  // need to compile anything
  