Closes Anuken/Mindustry-Suggestions/issues/5742

core/src/mindustry/io/versions/LegacyIO.java

@@ -2,9 +2,6 @@ package mindustry.io.versions;
 
 import arc.*;
 import arc.struct.*;
-import arc.util.*;
-import mindustry.*;
-import mindustry.ctype.*;
 import mindustry.ui.dialogs.JoinDialog.*;
 
 import java.io.*;
@@ -50,35 +47,4 @@ public class LegacyIO{
         }
         return arr;
     }
-
-    public static void readResearch(){
-        try{
-            byte[] bytes = Core.settings.getBytes("unlocks");
-            DataInputStream stream = new DataInputStream(new ByteArrayInputStream(bytes));
-
-            int length = stream.readInt();
-            if(length > 0){
-                stream.readUTF(); //name of key type
-                stream.readUTF(); //name of value type
-
-                //each element is an array list
-                for(int i = 0; i < length; i++){
-                    ContentType type = ContentType.all[stream.readInt()];
-                    int arrLength = stream.readInt();
-                    if(arrLength > 0){
-                        stream.readUTF(); //type of contents (String)
-                        for(int j = 0; j < arrLength; j++){
-                            String name = stream.readUTF();
-                            Content out = Vars.content.getByName(type, name);
-                            if(out instanceof UnlockableContent u){
-                                u.quietUnlock();
-                            }
-                        }
-                    }
-                }
-            }
-        }catch(Exception e){
-            Log.err(e);
-        }
-    }
 }