Remove any earlier matrix config

src/freedombone-app-matrix

     [[ "${REPORT_STATS}" != "yes" ]] && [[ "${REPORT_STATS}" != "no" ]] && \
         echo "STOP! REPORT_STATS needs to be 'no' or 'yes'" && breakup="1"
 
+    if [ -f ${MATRIX_DATA_DIR}/homeserver.yaml ]; then
+        rm ${MATRIX_DATA_DIR}/homeserver.yaml
+    fi
     matrix_generate_synapse_file ${MATRIX_DATA_DIR}/homeserver.yaml
     matrix_configure_homeserver_yaml "${turnkey}" ${MATRIX_DATA_DIR}/homeserver.yaml
 }