update dockerfile

Dockerfile

@@ -1,3 +1,4 @@
+# This file may not be used if using the gradio SDK.
 FROM nvcr.io/nvidia/pytorch:23.08-py3
 
 LABEL maintainer="yuanze"
@@ -22,13 +23,7 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 ENV TORCH_CUDA_ARCH_LIST="8.6"
 
 # Install Pointnet2_PyTorch
-RUN git clone https://github.com/erikwijmans/Pointnet2_PyTorch.git
-
-# replace the setup.py file to fix the error
-COPY --chown=user:user ./change_setup.txt /code/Pointnet2_PyTorch/pointnet2_ops_lib/setup.py
-
-RUN cd Pointnet2_PyTorch/pointnet2_ops_lib \
-    && pip install .
+RUN pip install "git+git://github.com/yuanze1024/Pointnet2_PyTorch.git#egg=pointnet2_ops&subdirectory=pointnet2_ops_lib"
 
 COPY --chown=user:user . /code