Fix compile errors after delete __future copy creation and copy assig…

…nment

Signed-off-by: Sergey Kopienko <[email protected]>

include/oneapi/dpl/internal/async_impl/async_impl_hetero.h

@@ -42,10 +42,9 @@ __pattern_walk1_async(__hetero_tag<_BackendTag>, _ExecutionPolicy&& __exec, _For
         oneapi::dpl::__ranges::__get_sycl_range<__par_backend_hetero::access_mode::read_write, _ForwardIterator>();
     auto __buf = __keep(__first, __last);
 
-    auto __future_obj = oneapi::dpl::__par_backend_hetero::__parallel_for(
+    return oneapi::dpl::__par_backend_hetero::__parallel_for(
         _BackendTag{}, ::std::forward<_ExecutionPolicy>(__exec),
         unseq_backend::walk_n<_ExecutionPolicy, _Function>{__f}, __n, __buf.all_view());
-    return __future_obj;
 }
 
 template <__par_backend_hetero::access_mode __acc_mode1 = __par_backend_hetero::access_mode::read,

include/oneapi/dpl/internal/async_impl/glue_async_impl.h

@@ -46,10 +46,9 @@ transform_async(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIt
     const auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first, __result);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
-    auto ret_val = oneapi::dpl::__internal::__pattern_walk2_async(
+    return oneapi::dpl::__internal::__pattern_walk2_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
         oneapi::dpl::__internal::__transform_functor<_UnaryOperation>{::std::move(__op)});
-    return ret_val;
 }
 
 template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _ForwardIterator,
@@ -64,10 +63,9 @@ transform_async(_ExecutionPolicy&& __exec, _ForwardIterator1 __first1, _ForwardI
     const auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first1, __first2, __result);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
-    auto ret_val = oneapi::dpl::__internal::__pattern_walk3_async(
+    return oneapi::dpl::__internal::__pattern_walk3_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first1, __last1, __first2, __result,
         oneapi::dpl::__internal::__transform_functor<_BinaryOperation>(::std::move(__op)));
-    return ret_val;
 }
 
 // [async.copy]
@@ -80,10 +78,9 @@ copy_async(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterato
     auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first, __result);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
-    auto ret_val = oneapi::dpl::__internal::__pattern_walk2_brick_async(
+    return oneapi::dpl::__internal::__pattern_walk2_brick_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
         oneapi::dpl::__internal::__brick_copy<decltype(__dispatch_tag), _ExecutionPolicy>{});
-    return ret_val;
 }
 
 // [async.sort]
@@ -127,9 +124,8 @@ for_each_async(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIter
     const auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
-    auto ret_val = oneapi::dpl::__internal::__pattern_walk1_async(
+    return oneapi::dpl::__internal::__pattern_walk1_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __f);
-    return ret_val;
 }
 
 // [async.reduce]
@@ -144,10 +140,9 @@ reduce_async(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterat
     const auto __dispatch_tag = oneapi::dpl::__internal::__select_backend(__exec, __first);
 
     wait_for_all(::std::forward<_Events>(__dependencies)...);
-    auto ret_val = oneapi::dpl::__internal::__pattern_transform_reduce_async(
+    return oneapi::dpl::__internal::__pattern_transform_reduce_async(
         __dispatch_tag, ::std::forward<_ExecutionPolicy>(__exec), __first, __last, __init, __binary_op,
         oneapi::dpl::__internal::__no_op());
-    return ret_val;
 }
 
 template <class _ExecutionPolicy, class _ForwardIt, class... _Events,