Made replaced preset sector saves auto-delete

core/src/mindustry/game/Saves.java

@@ -55,6 +55,16 @@ public class Saves{
             }
         }
 
+        //clear saves from build <130 that had the new naval sectors.
+        saves.removeAll(s -> {
+            if(s.getSector() != null && (s.getSector().id == 108 || s.getSector().id == 216) && s.meta.build <= 130 && s.meta.build > 0){
+                s.getSector().clearInfo();
+                s.file.delete();
+                return true;
+            }
+            return false;
+        });
+
         lastSectorSave = saves.find(s -> s.isSector() && s.getName().equals(Core.settings.getString("last-sector-save", "<none>")));
 
         //automatically assign sector save slots
@@ -289,7 +299,7 @@ public class Saves{
             return meta.mods;
         }
 
-        public Sector getSector(){
+        public @Nullable Sector getSector(){
             return meta == null || meta.rules == null ? null : meta.rules.sector;
         }