Drop jobtracker from Hadoop tunnel configuration

analytics1010 refuses connections on the jobtracker port 50030.
In fact all off analytics10\(1[0-9]\|20\) refuse connections on port
50030. But the jobs service on analytics1010:8088 allows to track jobs
and their status.

Change-Id: Ifb14994c4774a61dd726093f8c390fbdd839c8c0