chore(api): Remove UTF8ResourceBundleControl

Resource bundles are UTF-8 by default since Java 9.

Author: kezz

api/src/main/java/net/kyori/adventure/translation/TranslationStore.java

@@ -33,7 +33,6 @@
 import java.util.function.Function;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.Component;
-import net.kyori.adventure.util.UTF8ResourceBundleControl;
 
 /**
  * A store of translation values.
@@ -192,19 +191,10 @@ interface StringBased<T> extends TranslationStore<T> {
     /**
      * Registers a resource bundle of translations.
      *
-     * <p>It is highly recommended to create your bundle using {@link UTF8ResourceBundleControl} as your bundle control for UTF-8 support - for example:</p>
-     *
-     * <pre>{@code
-     *   final TranslationStore store = ...;
-     *   final ResourceBundle bundle = ResourceBundle.getBundle("my_bundle", Locale.GERMANY, UTF8ResourceBundleControl.get());
-     *   store.registerAll(Locale.GERMANY, bundle, false);
-     * }</pre>
-     *
      * @param locale a locale
      * @param bundle a resource bundle
      * @param escapeSingleQuotes whether to escape single quotes
      * @throws IllegalArgumentException if a translation key already exists
-     * @see UTF8ResourceBundleControl
      * @since 4.20.0
      */
     void registerAll(final Locale locale, final ResourceBundle bundle, final boolean escapeSingleQuotes);

api/src/main/java/net/kyori/adventure/util/UTF8ResourceBundleControl.java

@@ -33,7 +33,6 @@
 import net.kyori.adventure.text.event.HoverEvent;
 import net.kyori.adventure.text.format.NamedTextColor;
 import net.kyori.adventure.text.renderer.TranslatableComponentRenderer;
-import net.kyori.adventure.util.UTF8ResourceBundleControl;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
@@ -50,7 +49,7 @@ class TranslationStoreTest {
   static void testRegister() {
     REGISTRY.register("what", Locale.CANADA, new MessageFormat("A what?", Locale.CANADA));
 
-    final ResourceBundle bundle = ResourceBundle.getBundle("adventure-test", Locale.US, UTF8ResourceBundleControl.utf8ResourceBundleControl());
+    final ResourceBundle bundle = ResourceBundle.getBundle("adventure-test", Locale.US);
     REGISTRY.registerAll(Locale.US, bundle, true);
   }