removed redundant line in pic_loop and changed an incorrect comment
removed redundant line in pic_loop and changed an incorrect comment

SESA/EBBlib,jmcadden/EBBlib,jmcadden/EBBlib,jmcadden/EBBlib,SESA/EBBlib,jmcadden/EBBlib,SESA/EBBlib,SESA/EBBlib