alignment_data: Clear inferred_insert_size during reset
alignment_data: Clear inferred_insert_size during reset

NVlabs/firepony,broadinstitute/firepony,broadinstitute/firepony,NVlabs/firepony,broadinstitute/firepony,NVlabs/firepony,NVlabs/firepony,broadinstitute/firepony