Revert "Here a 'backup' command too to be sure"

This reverts commit ae62c4d1ef.

You should put 'backup' in 'runtime/bin/shutdown_commands.txt' instead

bin/simbackup

@@ -59,8 +59,6 @@ for simulator in ${REGIONS_DIR}/*; do
             OAR_FILE="${OAR_PATH}/${SIM}-`date -I'date'`.oar"
             screen -r ${SCREENPID}.${SIM} -X exec .\!\! echo "\nalert \"SYSTEM NOTICE: Region backup in progress\""
             sleep 5
-            screen -r ${SCREENPID}.${SIM} -X exec .\!\! echo "\nbackup"
-            sleep 30
             screen -r ${SCREENPID}.${SIM} -X exec .\!\! echo "\nsave oar ${OAR_OPTIONS} \"${OAR_FILE}\""
         fi
     fi