Fix Base DLC Build (#4838)

disable sitecustomize.py

Author: junpuf

base/x86_64/gpu/cu128/Dockerfile

@@ -92,8 +92,6 @@ COPY --from=python-builder /usr/local/bin /usr/local/bin
 COPY --from=cuda-builder /usr/local/cuda-${CUDA_MAJOR}.${CUDA_MINOR} /usr/local/cuda-${CUDA_MAJOR}.${CUDA_MINOR}
 COPY install_efa.sh install_efa.sh 
 COPY deep_learning_container.py /usr/local/bin/deep_learning_container.py
-COPY sitecustomize.py /usr/local/lib/python${PYTHON_SHORT_VERSION}/sitecustomize.py
-
 RUN chmod +x /usr/local/bin/deep_learning_container.py && \
     # Install EFA
     bash install_efa.sh ${EFA_VERSION} && \

src/image.py

@@ -206,7 +206,6 @@ def docker_build(self, fileobj=None, custom_context=False):
 
         line_counter = 0
         line_interval = 50
-        self.client.headers["X-Docker-BuildKit"] = "1"
         for line in self.client.build(
             fileobj=fileobj,
             path=self.dockerfile,