Fix copy-paste error

Belonging to [master]:
  - #2098

Author: sjoelund

Compiler/Template/CodegenCFunctions.tpl

@@ -4107,7 +4107,6 @@ template crefToCStr(ComponentRef cr, Integer ix, Boolean isPre, Boolean isStart)
   case SIMVAR(varKind=JAC_DIFF_VAR())
   case SIMVAR(varKind=SEED_VAR())
   case SIMVAR(varKind=DAE_RESIDUAL_VAR())
-  case SIMVAR(varKind=DAE_RESIDUAL_VAR())
   case SIMVAR(index=-2)
   then
     if intEq(ix,0) then (if isPre then "$P$PRE")+crefDefine(cr)