Android: Convert AbstractBooleanSetting to Kotlin

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/ui/SettingDisabledWarningFragment.kt

@@ -43,7 +43,7 @@ abstract class SettingDisabledWarningFragment(
         super.onResume()
         val activity = requireActivity() as CheatsActivity
         activity.loadGameSpecificSettings().use {
-            val cheatsEnabled = setting.getBoolean()
+            val cheatsEnabled = setting.boolean
             requireView().visibility = if (cheatsEnabled) View.GONE else View.VISIBLE
         }
     }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/AbstractBooleanSetting.java

@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.dolphinemu.dolphinemu.features.settings.model;
-
-import androidx.annotation.NonNull;
-
-public interface AbstractBooleanSetting extends AbstractSetting
-{
-  boolean getBoolean();
-
-  void setBoolean(@NonNull Settings settings, boolean newValue);
-}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/AbstractBooleanSetting.kt

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.features.settings.model
+
+interface AbstractBooleanSetting : AbstractSetting {
+    val boolean: Boolean
+
+    fun setBoolean(settings: Settings, newValue: Boolean)
+}