refactor: removed unused header from planer class

Author: dalerank

src/grid/building_tiles.cpp

@@ -359,6 +359,7 @@ void map_building_tiles_remove(int building_id, tile2i tile) {
         size = b->size;
         base_grid_offset = b->data.entertainment.booth_corner_grid_offset;
         break;
+
     case BUILDING_FESTIVAL_SQUARE:
         size = 5;
         break;

src/widget/city/building_ghost.cpp

@@ -2,12 +2,8 @@
 
 #include "grid/routing/routing.h"
 #include "building/construction/build_planner.h"
-#include "building/building_booth.h"
-#include "building/building_bandstand.h"
-#include "building/building_pavilion.h"
 #include "building/building_farm.h"
 #include "building/building_fishing_wharf.h"
-#include "building/building_festival_square.h"
 #include "building/building_storage_yard.h"
 #include "building/building_road.h"
 #include "building/building_well.h"