[saml common] use get_soap_message in get_saml2_soap_request
[saml common] use get_soap_message in get_saml2_soap_request

incuna/authentic,adieu/authentic2,incuna/authentic,incuna/authentic,pu239ppy/authentic2,BryceLohr/authentic,adieu/authentic2,adieu/authentic2,pu239ppy/authentic2,adieu/authentic2,BryceLohr/authentic,incuna/authentic,BryceLohr/authentic,pu239ppy/authentic2,pu239ppy/authentic2,BryceLohr/authentic,incuna/authentic