fix indentation issue (#4941)

src/transformers/benchmark/benchmark.py

@@ -129,7 +129,6 @@ class PyTorchBenchmark(Benchmark):
                         logger.info(
                             "Please consider updating PyTorch to version 1.4 to get more accuracy on GPU memory usage"
                         )
-                        memory = Memory(torch.cuda.max_memory_cached())
                         memory = Memory(torch.cuda.max_memory_reserved())
 
                 return memory, summary