Relocate Steam setup process

SteamCMD/Dockerfile

@@ -5,12 +5,8 @@ ENV DEBIAN_FRONTEND=noninteractive \
     USER=container
 WORKDIR ${HOME}
 SHELL ["/bin/bash", "-c"]
-RUN apt-get update && apt-get upgrade -y && apt-get install -y \
-    iproute2 \
-    locales \
-    software-properties-common \
-    unzip \
-    wget && \
+RUN apt-get update && apt-get install -y \
+    iproute2 locales software-properties-common unzip wget && \
     locale-gen --lang en_US.UTF-8 && \
     add-apt-repository multiverse && \
     dpkg --add-architecture i386 && \
@@ -18,12 +14,8 @@ RUN apt-get update && apt-get upgrade -y && apt-get install -y \
     echo steam steam/question select "I AGREE" | debconf-set-selections && \
     apt-get install lib32gcc-s1 steamcmd -y && \
     ln -s /usr/games/steamcmd /bin/steamcmd && \
-    useradd ${USER} -d ${HOME} && \
-    mkdir -p ${HOME}/.steam/{root,steam,sdk64} && \
-    chown -R ${USER}:${USER} ${HOME}
-
+    useradd ${USER} -d ${HOME}
 USER ${USER}
-RUN  steamcmd +quit && \
-    ln -s ${HOME}/.local/share/Steam/steamcmd/linux64/steamclient.so ${HOME}/.steam/sdk64/steamclient.so
+
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/bin/bash", "/entrypoint.sh"]