[minor] removed 2 warnings

Author: BerengerBerthoul

external/project_utils

@@ -118,7 +118,7 @@ TEST_CASE("then_comm") {
   auto s0 = input_data(tg,std::vector{3,0,1,2}) | then(sort_vec);
   auto s1 = s0 | then_comm(get_remote_info);
   auto s2 = s0 | then(reverse_vec_with_delay);
-  auto s3 = join(std::move(s1),std::move(s2)) | then(concatenate_vec);
+  /*auto s3 = */join(std::move(s1),std::move(s2)) | then(concatenate_vec);
 
   CHECK( tg.size() == 5 );
 

std_e/execution/test/base_task.mpi.test.cpp

@@ -111,7 +111,7 @@ MPI_TEST_CASE("send recv async overlap",2) {
   future s0 = input_data(tg,std::move(x));
   future s1 = s0 | then_comm2(send_recv_msg_0,test_comm) | then(reverse_msg);
   future s2 = s0 | then_comm2(send_recv_msg_1,test_comm) | then(reverse_msg);
-  auto s3 = join(std::move(s1),std::move(s2)) | then(concatenate_vec);
+  /*auto s3 = */join(std::move(s1),std::move(s2)) | then(concatenate_vec);
 
   CHECK( tg.size() == 6 );