SQLITE_NOTICE(283): recovered 5 frames from WAL file /data/mtt.fossil-wal

File ntt/bin/trans/mttDeleteField.m artifact 482e247ec2 part of check-in ef5da2379d

function model = mttDeleteField(structure,field_name)
    if isfield(structure,field_name)
        model = rmfield(structure,field_name) ;
    else
        model = structure ;
    end