Update README and remove unneeded header

Author: nvkevihu

tftrt/benchmarking-cpp/README.md

@@ -42,13 +42,7 @@ The binary will be located at `/opt/tensorflow/tensorflow-source/bazel-bin/tenso
 
 ### Prebuilt
 
-For internal NVIDIA users, a container with a prebuilt modified Tensorflow is available:
-
-```
-docker run --rm --gpus all --ipc=host --ulimit memlock=-1 --ulimit stack=67108864 -it --name TFTRT_CPP gitlab-master.nvidia.com:5005/dl/dgx/tensorflow:cpp-tensorboard-patch-py3-base
-```
-
-Use CMake to build the binary without needing to rebuild Tensorflow:
+For internal NVIDIA users, a container with a prebuilt modified Tensorflow is available. In the container, use CMake to build the binary without needing to rebuild Tensorflow:
 
 ```
 cd /workspace/tensorrt/tftrt/benchmarking-cpp

tftrt/benchmarking-cpp/main.cc

@@ -7,7 +7,6 @@
 #include "tensorflow/cc/ops/const_op.h"
 #include "tensorflow/cc/ops/image_ops.h"
 #include "tensorflow/cc/saved_model/loader.h"
-#include "tensorflow/compiler/tf2tensorrt/trt_convert_api.h"
 #include "tensorflow/core/common_runtime/device_mgr.h"
 #include "tensorflow/core/framework/graph.pb.h"
 #include "tensorflow/core/framework/tensor.h"