removed unnecessary cmfd variables
removed unnecessary cmfd variables

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