Resolves: tdf#84121 wrong password passed to xpdfimport

regression from...

commit eb276d11
Author: Fridrich Štrba <fridrich.strba@bluewin.ch>
Date:   Mon Jul 8 14:01:17 2013 +0200

    fdo#38878: Upgrading internal xpdf -> poppler

before this the hashed _OOO_pdfi_Credentials_ was used
in the removed OOoImportSecurityhandler::authorize

but after this the hashed password continued to be
passed through stdin, while the unhashed password
was the required data.

Change-Id: Iadc8a372abcfab514f724dd95f05776e5153d007

sdext/source/pdfimport/wrapper/wrapper.cxx

@@ -961,13 +961,6 @@ static bool checkEncryption( const OUString&                               i_rPa
                         OSL_TRACE( "password: %s", bAuthenticated ? "matches" : "does not match" );
                         bSuccess = bAuthenticated;
                     }
-                    if( bAuthenticated )
-                    {
-                        OUStringBuffer aBuf( 128 );
-                        aBuf.append( "_OOO_pdfi_Credentials_" );
-                        aBuf.append( pPDFFile->getDecryptionKey() );
-                        io_rPwd = aBuf.makeStringAndClear();
-                    }
                 }
                 else if( i_xIHdl.is() )
                 {