Remove the ensure_started not needed anymore

as the release happens in the unwrap now.

include/dlaf/eigensolver/tridiag_solver/merge.h

@@ -252,12 +252,7 @@ auto calcTolerance(const SizeType i_begin, const SizeType i_end, Matrix<const T,
   };
 
   return ex::when_all(std::move(dmax), std::move(zmax)) |
-         di::transform(di::Policy<Backend::MC>(), std::move(tol_fn)) |
-         // TODO: This releases the tiles that are kept in the operation state.
-         // This is a temporary fix and needs to be replaced by a different
-         // adaptor or different lifetime guarantees. This is tracked in
-         // https://github.com/pika-org/pika/issues/479.
-         ex::ensure_started();
+         di::transform(di::Policy<Backend::MC>(), std::move(tol_fn));
 }
 
 // The index array `out_ptr` holds the indices of elements of `c_ptr` that order it such that
@@ -442,12 +437,7 @@ auto applyDeflation(const SizeType i_begin, const SizeType i_end, RhoSender&& rh
                              ex::when_all_vector(tc.read(index)), ex::when_all_vector(tc.readwrite(d)),
                              ex::when_all_vector(tc.readwrite(z)), ex::when_all_vector(tc.readwrite(c)));
 
-  return di::transform(di::Policy<Backend::MC>(), std::move(deflate_fn), std::move(sender)) |
-         // TODO: This releases the tiles that are kept in the operation state.
-         // This is a temporary fix and needs to be replaced by a different
-         // adaptor or different lifetime guarantees. This is tracked in
-         // https://github.com/pika-org/pika/issues/479.
-         ex::ensure_started();
+  return di::transform(di::Policy<Backend::MC>(), std::move(deflate_fn), std::move(sender));
 }
 
 // z is an input whose values are destroyed by this call (input + workspace)