removed old XML reader from geometry portion on file
removed old XML reader from geometry portion on file

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