message: there is no class merging interdex plugin anymore...
  Summary:
  ... and thus we don't need to double-`gather_refs` when overflowing.
  This is a behavior-preserving change.
diff: @@ -370,17 +370,6 @@ InterDex::EmitResult InterDex::emit_class(DexInfo& dex_info,
  return {false, true};
  }
  - // Plugins may maintain internal state after gathering refs, and
  - // then they tend to forget that state after flushing out (class
  - // merging, looking at you). So, let's redo gathering of refs here
  - // to give plugins a chance to rebuild their internal state.
  - clazz_mrefs.clear();
  - clazz_frefs.clear();
  - clazz_trefs.clear();
  - clazz_itrefs.clear();
  - gather_refs(m_plugins, dex_info, clazz, &clazz_mrefs, &clazz_frefs,
  - &clazz_trefs, &clazz_itrefs);
  -
  m_dexes_structure.add_class_no_checks(clazz_mrefs, clazz_frefs, clazz_trefs,
  clazz_itrefs, clazz);
  }
  