Cleanup: Use array_utils to copy evaluated field array

source/blender/functions/intern/field.cc

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
+#include "BLI_array_utils.hh"
 #include "BLI_index_mask_ops.hh"
 #include "BLI_map.hh"
 #include "BLI_multi_value_map.hh"
@@ -468,11 +469,7 @@ Vector<GVArray> evaluate_fields(ResourceScope &scope,
       }
       /* Still have to copy over the data in the destination provided by the caller. */
       if (dst_varray.is_span()) {
-        /* Materialize into a span. */
-        threading::parallel_for(mask.index_range(), 2048, [&](const IndexRange range) {
-          computed_varray.materialize_to_uninitialized(mask.slice(range),
-                                                       dst_varray.get_internal_span().data());
-        });
+        array_utils::copy(computed_varray, mask, dst_varray.get_internal_span());
       }
       else {
         /* Slower materialize into a different structure. */