Removes some references to deprecated methods/types (#9043)

patches/api/Adventure.patch

@@ -3229,7 +3229,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    // Paper start
 +    private final java.util.Locale adventure$locale;
 +    /**
-+     * @see Player#getLocale()
++     * @see Player#locale()
 +     *
 +     * @return the player's new locale
 +     */
@@ -3556,6 +3556,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/event/server/BroadcastMessageEvent.java
 +++ b/src/main/java/org/bukkit/event/server/BroadcastMessageEvent.java
 @@ -0,0 +0,0 @@ import org.jetbrains.annotations.NotNull;
+ 
+ /**
+  * Event triggered for server broadcast messages such as from
+- * {@link org.bukkit.Server#broadcast(String, String)}.
++ * {@link org.bukkit.Server#broadcast(net.kyori.adventure.text.Component)} (String, String)}.
+  *
+- * <b>This event behaves similarly to {@link AsyncPlayerChatEvent} in that it
++ * <b>This event behaves similarly to {@link io.papermc.paper.event.player.AsyncChatEvent} in that it
+  * should be async if fired from an async thread. Please see that event for
+  * further information.</b>
+  */
  public class BroadcastMessageEvent extends ServerEvent implements Cancellable {
  
      private static final HandlerList handlers = new HandlerList();