message: Remove unneeded lambda capture in abi serializer
diff: @@ -800,7 +800,7 @@ namespace eosio { namespace chain {
  }
  fc::scoped_exit<std::function<void()>> variant_to_binary_context::disallow_extensions_unless( bool condition ) {
  - std::function<void()> callback = [old_recursion_depth=recursion_depth, old_allow_extensions=allow_extensions, this](){
  + std::function<void()> callback = [old_allow_extensions=allow_extensions, this](){
  allow_extensions = old_allow_extensions;
  };
  