Fix ISSUE-48206: Remove obsolete pentaho integration code.

That code is long obsolete and unused. Remove it:

• GlobalMenu to build links to OpenPentaho servlet
• OpenPentaho servlet and xsql file
• Openbravo.properties.template pentahoServer entry
  • HttpSecureAppServlet storing that in http session
    • Related issue 48207 does cleanup in mobile.core
• ad_process columns related to this
  • service_source column
  • service_type column (and ad_ref_list entry)

Related MR in: openbravo/product/pmods/org.openbravo.mobile.core!311

• as mobile.core has copy of HSAS.readProperties method

TODO:

• Manage API-changes shown here: https://builds.openbravo.com/job/try-api/648/
• Check on ad_process.isexternalservice column
  • can't be easily removed (as would be formal change in every existing ad_process)
  • Maybe deprecate
  • Still referenced here also: https://gitlab.com/openbravo/product/openbravo/-/blob/master/src/org/openbravo/base/secureApp/Seguridad_data.xsql#L170