Remove leftover xcache pieces from worker dockefile

docker/Dockerfile.cc-analysis-ubuntu

@@ -9,13 +9,12 @@ ARG NB_GID="11265"
 ARG CERT_DIR="/etc/cmsaf-secrets"
 # Hack for GH Actions
 ARG GITHUB_ACTIONS="false"
-# For now bearer token location on worker is hardcoded "$_CONDOR_JOB_IWD/xcache_token"
-ARG BEARER_TOKEN_FILE
 
-# For now bearer token location on worker is hardcoded "$_CONDOR_JOB_IWD/xcache_token"
+# For now bearer token location on worker is hardcoded 
+# in coffea_casa module as environment"$_CONDOR_JOB_IWD/xcache_token"
+
 # Configure environment
 ENV CERT_DIR $CERT_DIR
-ENV BEARER_TOKEN_FILE "$_CONDOR_JOB_IWD/access_token"
 ENV CONDA_DIR /opt/conda
 ENV SHELL /bin/bash
 ENV NB_USER $NB_USER
@@ -147,10 +146,6 @@ EOF
 
 RUN ln -s /etc/grid-security/certificates/hcc-flatiron.pem /etc/grid-security/certificates/80d1fda9.0
 
-# REMOVE ME AFTER TEST:
-# xcache setup
-#ENV XRD_PLUGINCONFDIR="${CONDA_DIR}/etc/xrootd/client.plugins.d/"
-#ENV XRD_PLUGIN="${CONDA_DIR}/lib/libXrdClAuthzPlugin.so"
 # TODO: RETEST IF WE STILL NEED THIS 
 ENV LD_LIBRARY_PATH="/opt/conda/lib/:$LD_LIBRARY_PATH"
 ENV PATH="/opt/conda/bin/:$PATH"
@@ -165,11 +160,6 @@ COPY k8s-worker/supervisord.conf  /etc/supervisor/
 RUN groupadd -r condor && \
     useradd -r -g condor -d /var/lib/condor -s /sbin/nologin condor
 
-# REMOVE ME AFTER TEST:
-# Patching uproot (broken xrootd-authz-plugin with xrootd > 5.2.0 and uproot.MultithreadedXRootDSource)
-#COPY uproot/uproot_xrd_source.patch /opt/conda/lib/python3.8/site-packages/uproot
-#RUN cd /opt/conda/lib/python3.8/site-packages/uproot && patch < uproot_xrd_source.patch
-
 # FIXME: merge PRs open in distributed.git (oshadura)
 # Distributed: we need to install patched version of distributed version
 COPY dask/distributed /opt/conda/lib/python3.8/site-packages/distributed