chore!: remove the unsuported i386 dockerfile since ubuntu 18 is no longer supported for 32 bit (#108)

Dockerfile.i386

@@ -1,60 +0,0 @@
-FROM i386/ubuntu:18.04
-
-ARG S6_OVERLAY_VERSION=v2.2.0.3
-ARG S6_OVERLAY_ARCH=x86
-ARG PLEX_BUILD=linux-x86
-ARG PLEX_DISTRO=debian
-ARG DEBIAN_FRONTEND="noninteractive"
-ENV TERM="xterm" LANG="C.UTF-8" LC_ALL="C.UTF-8"
-
-ENTRYPOINT ["/init"]
-
-RUN \
-# Update and get dependencies
-    apt-get update && \
-    apt-get install -y \
-      tzdata \
-      curl \
-      xmlstarlet \
-      uuid-runtime \
-      unrar \
-    && \
-    \
-# Fetch and extract S6 overlay
-    curl -J -L -o /tmp/s6-overlay-${S6_OVERLAY_ARCH}.tar.gz https://github.com/just-containers/s6-overlay/releases/download/${S6_OVERLAY_VERSION}/s6-overlay-${S6_OVERLAY_ARCH}.tar.gz && \
-    tar xzf /tmp/s6-overlay-${S6_OVERLAY_ARCH}.tar.gz -C / && \
-    \
-# Add user
-    useradd -U -d /config -s /bin/false plex && \
-    usermod -G users plex && \
-    \
-# Setup directories
-    mkdir -p \
-      /config \
-      /transcode \
-      /data \
-    && \
-    \
-# Cleanup
-    apt-get -y autoremove && \
-    apt-get -y clean && \
-    rm -rf /var/lib/apt/lists/* && \
-    rm -rf /tmp/* && \
-    rm -rf /var/tmp/*
-
-EXPOSE 32400/tcp 8324/tcp 32469/tcp 1900/udp 32410/udp 32412/udp 32413/udp 32414/udp
-VOLUME /config /transcode
-
-ENV CHANGE_CONFIG_DIR_OWNERSHIP="true" \
-    HOME="/config"
-
-ARG TAG=beta
-ARG URL=
-
-COPY root/ /
-
-RUN \
-# Save version and install
-    /installBinary.sh
-
-HEALTHCHECK --interval=5s --timeout=2s --retries=20 CMD /healthcheck.sh || exit 1