Removes exec -a shuttl-java-server from the start.py, since it's irrelevant.
Removes exec -a shuttl-java-server from the start.py, since it's irrelevant.

splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl,splunk/splunk-shuttl