Clean up the older gfx build step to minimize image size

Author: kprinssu

docker/rocm/Dockerfile

@@ -49,18 +49,15 @@ RUN --mount=type=cache,target=/root/.cache/uv \
     uv venv --python 3.12 && \
     uv sync --extra rocm
 
-# Run kbd files
-ENV ROCM_VERSION=6.4.3
+# Support older AMD GPUs
+ENV ROCM_VERSION=6.4.4
 COPY --chown=appuser:appuser docker/rocm/kbd_install.sh /tmp/
-RUN chmod +x /tmp/kbd_install.sh && /tmp/kbd_install.sh
-
-# Support older GFX Arch
-RUN cd /tmp && wget https://archlinux.org/packages/extra/x86_64/rocblas/download -O rocblas.tar.zst \
-    && pwd && ls -lah ./ \
-    && tar --zstd -xvf rocblas.tar.zst && rm rocblas.tar.zst \
+RUN chmod +x /tmp/kbd_install.sh && /tmp/kbd_install.sh \
+    && cd /tmp && wget https://archlinux.org/packages/extra/x86_64/rocblas/download -O rocblas.tar.zst \
+    && tar --zstd --keep-old-files --no-overwrite-dir -xvf rocblas.tar.zst && rm rocblas.tar.zst \
     && rm -rf /app/.venv/lib/python3.12/site-packages/torch/lib/rocblas/library/ \
     && mv ./opt/rocm/lib/rocblas/library/ /app/.venv/lib/python3.12/site-packages/torch/lib/rocblas/ \
-    && rm -rf ./opt && ./usr
+    && rm -rf /tmp/*
 
 # Copy project files including models
 COPY --chown=appuser:appuser api ./api