remove unused dist_from_area_sum variable

Signed-off-by: Ryuta Kambe <ryuta.kambe@tier4.jp>

Author: veqcc

planning/behavior_velocity_no_stopping_area_module/src/scene_no_stopping_area.cpp

@@ -323,21 +323,18 @@ Polygon2d NoStoppingAreaModule::generateEgoNoStoppingAreaLanePolygon(
   if (!is_in_area) {
     return ego_area;
   }
-  double dist_from_area_sum = 0.0;
   // decide end idx with extract distance
   size_t ego_area_end_idx = ego_area_start_idx;
   for (size_t i = ego_area_start_idx; i < pp.size() - 1; ++i) {
     dist_from_start_sum += tier4_autoware_utils::calcDistance2d(pp.at(i), pp.at(i - 1));
     const auto & p = pp.at(i).point.pose.position;
     if (!bg::within(Point2d{p.x, p.y}, lanelet::utils::to2D(no_stopping_area).basicPolygon())) {
-      dist_from_area_sum += tier4_autoware_utils::calcDistance2d(pp.at(i), pp.at(i - 1));
-
       // do not take extra distance and exit as soon as p is outside no stopping area
       // just a temporary fix
       ego_area_end_idx = i - 1;
       break;
     }
-    if (dist_from_start_sum > extra_dist || dist_from_area_sum > margin) {
+    if (dist_from_start_sum > extra_dist) {
       break;
     }
     ++ego_area_end_idx;