Kill superfluous return

dune/solvers/iterationsteps/blockgssteps.hh

@@ -60,8 +60,8 @@ template <class M, class V, class BitVector, class LocalSolver>
 void linearStep(LinearIterationStep<M, V, BitVector>& lis,
                 LocalSolver&& localSolver,
                 Direction direction = Direction::FORWARD) {
-  return linearStep(*lis.mat_, *lis.x_, *lis.rhs_, lis.ignore(),
-                    std::forward<LocalSolver>(localSolver), direction);
+  linearStep(*lis.mat_, *lis.x_, *lis.rhs_, lis.ignore(),
+             std::forward<LocalSolver>(localSolver), direction);
 }
 
 /**