refactor: delete contrib/jetson/Dockerfile as it's no longer compatible post 0.5

feel free to sending pr of adding it back if you get it work with llama.cpp based docker image

contrib/jetson/Dockerfile

@@ -1,54 +0,0 @@
-FROM nvcr.io/nvidia/l4t-cuda:11.4.19-devel as builder
-
-ENV DEBIAN_FRONTEND=noninteractive
-# Use kitware's repo to make sure CMake is newer than 3.26, which is required by CTranslate2
-RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null |\
-        gpg --dearmor - | tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null && \
-    echo 'deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ focal main' |\
-        tee /etc/apt/sources.list.d/kitware.list >/dev/null && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends \
-        curl \
-        pkg-config \
-        libssl-dev \
-        libcudnn8-dev \
-        protobuf-compiler \
-        git \
-        cmake \
-        && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/*
-
-# setup rust.
-RUN curl https://sh.rustup.rs -sSf | bash -s -- -y
-ENV PATH="/root/.cargo/bin:${PATH}"
-
-WORKDIR /root/workspace
-COPY . .
-
-RUN mkdir -p /opt/tabby/bin
-RUN mkdir -p /opt/tabby/lib
-RUN mkdir -p target
-
-RUN --mount=type=cache,target=/usr/local/cargo/registry \
-    --mount=type=cache,target=/root/workspace/target \
-    cargo build --features link_static_cuda --release && \
-    cp target/release/tabby /opt/tabby/bin/
-
-FROM nvcr.io/nvidia/l4t-cuda:11.4.19-runtime
-
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        git libcudnn8 tini && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/*
-
-# Disable safe directory in docker
-# Context: https://github.com/git/git/commit/8959555cee7ec045958f9b6dd62e541affb7e7d9
-RUN git config --system --add safe.directory "*"
-
-COPY --from=builder /opt/tabby /opt/tabby
-
-ENV TABBY_ROOT=/data
-
-ENTRYPOINT ["/usr/bin/tini", "--", "/opt/tabby/bin/tabby"]