remove dpush-summary from l1dmt1 crontab

The dpush-summary scripts does not exist and has been generating 1/hr cron failure email messages. This MR removes the entry from the crontab.

Closes #64 (closed)

aLigo/scripts/crontab-l1dmt1-dmtexec.txt

@@ -2,6 +2,5 @@
 */10 * * * * /usr/bin/USAGE.tcsh --gds-config=$HOME/dmtspi
 * * * * * $HOME/status/status-monitor-l1dmt1
 */5 * * * * $HOME/status/all_files-llo
-3 * * * * $HOME/scripts/dpush-summary
 10 * * * * (/bin/rsync --verbose -W --archive --compress --timeout=3600 --exclude conlog/  --exclude current --exclude frames/ /gds/dmt/trends/ ldasadm@ldas-cit.ligo.caltech.edu:/archive/frames/dmt/L1/trends > /var/tmp/rsync.trends.out 2>&1)
 10 2 * * * $HOME/scripts/sensemon_rename