remove unused variables

[[Imported from SVN: r4842]]

dune/solvers/transferoperators/truncatedcompressedmgtransfer.cc

@@ -71,9 +71,6 @@ void TruncatedCompressedMGTransfer<DiscFuncType, BitVectorType, OperatorType>::r
     typedef typename TransferOperatorType::row_type RowType;
     typedef typename RowType::ConstIterator ColumnIterator;
 
-    Iterator tIt      = t.begin();
-    ConstIterator fIt = f.begin();
-    
     for (int rowIdx=0; rowIdx<this->matrix_->N(); rowIdx++) {
         
         const RowType& row = (*this->matrix_)[rowIdx];