restore integration test changes

This reverts commit cd3008b172d57ca562a4e0809b2d01cb12d36cdc.

Author: mateuszrzeszutek

cpp/src/arrow/flight/integration_tests/test_integration.cc

@@ -1167,6 +1167,7 @@ const std::shared_ptr<Schema>& GetQuerySchema() {
                         .IsSearchable(true)
                         .CatalogName("catalog_test")
                         .Precision(100)
+                        .Remarks("test column")
                         .Build()
                         .metadata_map())});
   return kSchema;
@@ -1187,6 +1188,7 @@ std::shared_ptr<Schema> GetQueryWithTransactionSchema() {
                         .IsSearchable(true)
                         .CatalogName("catalog_test")
                         .Precision(100)
+                        .Remarks("test column")
                         .Build()
                         .metadata_map())});
   return kSchema;