refactor: remove old Data API

src/me/topchetoeu/jscript/engine/Data.java

@@ -1,56 +0,0 @@
-package me.topchetoeu.jscript.engine;
-
-import java.util.HashMap;
-import java.util.Map;
-
-@SuppressWarnings("unchecked")
-public class Data {
-    private HashMap<DataKey<Object>, Object> data = new HashMap<>();
-
-    public Data copy() {
-        return new Data().addAll(this);
-    }
-
-    public Data addAll(Map<DataKey<?>, ?> data) {
-        for (var el : data.entrySet()) {
-            get((DataKey<Object>)el.getKey(), (Object)el.getValue());
-        }
-        return this;
-    }
-    public Data addAll(Data data) {
-        for (var el : data.data.entrySet()) {
-            get((DataKey<Object>)el.getKey(), (Object)el.getValue());
-        }
-        return this;
-    }
-
-    public <T> T remove(DataKey<T> key) {
-        return (T)data.remove(key);
-    }
-    public <T> Data set(DataKey<T> key, T val) {
-        data.put((DataKey<Object>)key, (Object)val);
-        return this;
-    }
-    public <T> T get(DataKey<T> key, T val) {
-        if (data.containsKey(key)) return (T)data.get((DataKey<Object>)key);
-        set(key, val);
-        return val;
-    }
-    public <T> T get(DataKey<T> key) {
-        if (data.containsKey(key)) return (T)data.get((DataKey<Object>)key);
-        return null;
-    }
-    public boolean has(DataKey<?> key) { return data.containsKey(key); }
-
-    public int increase(DataKey<Integer> key, int n, int start) {
-        int res;
-        set(key, res = get(key, start) + n);
-        return res;
-    }
-    public int increase(DataKey<Integer> key, int n) {
-        return increase(key, n, 0);
-    }
-    public int increase(DataKey<Integer> key) {
-        return increase(key, 1, 0);
-    }
-}

src/me/topchetoeu/jscript/engine/DataKey.java

@@ -1,3 +0,0 @@
-package me.topchetoeu.jscript.engine;
-
-public class DataKey<T> { }