got rid of 2 group fixed data
got rid of 2 group fixed data

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