message: fix: remove rev dels globally
  We first remove reversions of deletions from consideration everywhere
diff: @@ -358,7 +358,6 @@ namespace Nextclade {
  substitutionLabelMap, deletionLabelMap);
  auto privateSubstitutions = merge(privateReversionSubstitutions, privateNonReversionSubstitutions);
  - privateSubstitutions = merge(privateSubstitutions, privateReversionsOfDeletions);
  std::sort(privateSubstitutions.begin(), privateSubstitutions.end());
  auto privateDeletions = privateNonReversionDeletions;
  