android: Convert IntSetting to Kotlin

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/IntSetting.java

@@ -1,23 +0,0 @@
-package org.yuzu.yuzu_emu.features.settings.model;
-
-public final class IntSetting extends Setting {
-    private int mValue;
-
-    public IntSetting(String key, String section, int value) {
-        super(key, section);
-        mValue = value;
-    }
-
-    public int getValue() {
-        return mValue;
-    }
-
-    public void setValue(int value) {
-        mValue = value;
-    }
-
-    @Override
-    public String getValueAsString() {
-        return Integer.toString(mValue);
-    }
-}

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/IntSetting.kt

@@ -0,0 +1,9 @@
+package org.yuzu.yuzu_emu.features.settings.model
+
+class IntSetting(
+    key: String,
+    section: String,
+    var value: Int
+) : Setting(key, section) {
+    override val valueAsString = value.toString()
+}