Remove the DODS legacy response headers from our responses #283

Hyrax (the OLFS) sends back these old response headers from bacon the DODS days.

Do we need them?

Should we prune them?

Currently these headers are set as follows:

• XDODS-Server: dods/3.2
• XOPeNDAP-Server: asciival/, bes/, csv_handler/, dapreader_module/, dmrpp_module/, fileout_covjson/, fileout_json/, fileout_netcdf/, freeform_handler/, functions/, gateway/, hdf4_handler/, hdf5_handler/, libdap/, ncml_moddule/, netcdf_handler/, s3_reader/, usage/, w10n_handler/, xml_data_handler/
• X-DAP: 3.2

And while these values are technically dynamic, they have not changed in years (maybe even decades)

The function that produces these headers is used 42 times in the code base:

    public static void setOpendapMimeHeaders(HttpServletRequest request, HttpServletResponse response)
            throws JDOMException, BadConfigurationException, PPTException, IOException, BESError {
        response.setHeader("XDODS-Server", getXDODSServerVersion(request));
        response.setHeader("XOPeNDAP-Server", getXOPeNDAPServerVersion(request));
        response.setHeader("X-DAP", getXDAPVersion(request));

    }

I say: Purge Them All!