remove the previous_addr hack
remove the previous_addr hack

tyb0807/angr,schieb/angr,schieb/angr,iamahuman/angr,iamahuman/angr,tyb0807/angr,f-prettyland/angr,angr/angr,iamahuman/angr,angr/angr,f-prettyland/angr,f-prettyland/angr,angr/angr,schieb/angr,tyb0807/angr,angr/tracer