Removed redundant storage of total fission reaction.
Removed redundant storage of total fission reaction.

walshjon/openmc,mjlong/openmc,amandalund/openmc,smharper/openmc,paulromano/openmc,mjlong/openmc,smharper/openmc,wbinventor/openmc,wbinventor/openmc,paulromano/openmc,johnnyliu27/openmc,bhermanmit/openmc,bhermanmit/cdash,samuelshaner/openmc,amandalund/openmc,mit-crpg/openmc,mit-crpg/openmc,smharper/openmc,mit-crpg/openmc,smharper/openmc,amandalund/openmc,shikhar413/openmc,lilulu/openmc,kellyrowland/openmc,shenqicang/openmc,amandalund/openmc,sxds/opemmc,liangjg/openmc,lilulu/openmc,wbinventor/openmc,shenqicang/openmc,bhermanmit/openmc,kellyrowland/openmc,keadyk/openmc_mg_prepush,samuelshaner/openmc,johnnyliu27/openmc,liangjg/openmc,walshjon/openmc,shikhar413/openmc,nhorelik/openmc,johnnyliu27/openmc,paulromano/openmc,walshjon/openmc,sxds/opemmc,keadyk/openmc_mg_prepush,nhorelik/openmc,shikhar413/openmc,samuelshaner/openmc,liangjg/openmc,johnnyliu27/openmc,mit-crpg/openmc,paulromano/openmc,wbinventor/openmc,keadyk/openmc_mg_prepush,samuelshaner/openmc,liangjg/openmc,shikhar413/openmc,walshjon/openmc,lilulu/openmc