[FIX] model_test and benchmark remove x86 targets (#2600)

lite/api/benchmark.cc

@@ -46,7 +46,6 @@ void OutputOptModel(const std::string& load_model_dir,
   config.set_model_dir(load_model_dir);
   std::vector<Place> vaild_places = {
       Place{TARGET(kARM), PRECISION(kFloat)},
-      Place{TARGET(kX86), PRECISION(kFloat)},
   };
   if (FLAGS_is_quantized_model) {
     vaild_places.insert(vaild_places.begin(),

lite/api/model_test.cc

@@ -47,7 +47,6 @@ void OutputOptModel(const std::string& load_model_dir,
   lite_api::CxxConfig config;
   config.set_model_dir(load_model_dir);
   config.set_valid_places({
-      Place{TARGET(kX86), PRECISION(kFloat)},
       Place{TARGET(kARM), PRECISION(kFloat)},
   });
   auto predictor = lite_api::CreatePaddlePredictor(config);