Remove Phone GPS

The phone gps node was unnecessary since it is handled through a ros
node.  This commit removes the unnecessary node in an attempt to clean
up the repository.

Author: Matt Anderson <mia2n4@mst.edu>
Fix Ros Master Address

At competition it was necessary to change the roscore master address to
be able to use it with the phone for magnetometer information.  This
address has been changed back to local host which will allow the
computing division to run this launch file.

Author: Matt Anderson <mia2n4@mst.edu>
Merge branch 'master' of https://github.com/MST-Robotics/Enterprise_IGVC