chore: remove jetporch

Even though this branch is called `add-jetportch`, the project was
discontinued.

Dockerfile

@@ -1,12 +1,3 @@
-FROM ubuntu:22.04 as jetporch-builder
-ENV PATH /root/.cargo/bin:${PATH}
-RUN apt-get update \
-  && apt-get install -y build-essential curl git libssl-dev pkg-config \
-  && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
-  && git clone https://git.sr.ht/~mpdehaan/jetporch /tmp/jetporch \
-  && cd /tmp/jetporch \
-  && make
-
 FROM ubuntu:22.04
 
 # system deps
@@ -127,9 +118,7 @@ ENV XDG_CONFIG_HOME ${HOME}/.config
 ENV XDG_DATA_HOME ${HOME}/.local/share
 ENV XDG_CACHE_HOME ${HOME}/.cache
 ENV STARSHIP_CONFIG ${XDG_CONFIG_HOME}/starship/config.toml
-ENV CARGO_HOME ${XDG_DATA_HOME}/cargo
-ENV RUSTUP_HOME ${XDG_DATA_HOME}/rustup
-ENV PATH ${LOCAL_BIN_HOME}:${CARGO_HOME}/bin:$PATH
+ENV PATH ${LOCAL_BIN_HOME}:$PATH
 
 # NOTE (jpd): the section below exists mainly to handle a project running elixir 1.11.
 # It allows the usage of openssl 1.1 and a compatible elixir-ls.
@@ -154,9 +143,6 @@ RUN curl https://mise.jdx.dev/install.sh | sh \
   && curl -sS https://raw.githubusercontent.com/ajeetdsouza/zoxide/main/install.sh | bash \
   && git clone https://github.com/tmux-plugins/tpm.git ${XDG_CONFIG_HOME}/tmux/plugins/tpm
 
-# fetch jetporch from builder step
-COPY --from=jetporch-builder --chown=coder:coder /tmp/jetporch/target/release/jetp ${LOCAL_BIN_HOME}
-
 # configure fish and bash
 RUN fish -c true \
   && echo 'starship init fish | source' >> ${XDG_CONFIG_HOME}/fish/config.fish \