Remove DEV_SERVER_PORT and WEB_SERVER_PORT
Remove DEV_SERVER_PORT and WEB_SERVER_PORT

With the removal of get_server_info and get_ext_server_info the global
variables DEV_SERVER_PORT and WEB_SERVER_PORT became obsolete.
Therefore, they have been removed from settings_local.py.

msassmann/texcavator,msassmann/texcavator,msassmann/texcavator,msassmann/texcavator,UUDigitalHumanitieslab/texcavator,UUDigitalHumanitieslab/texcavator,UUDigitalHumanitieslab/texcavator