Reduce visibility of ReactHost.destroy() method

Summary:
This diff reduces the visibility of ReactHost.destroy() method

changelog: [internal] internal

Reviewed By: luluwu2032

Differential Revision: D46293388

fbshipit-source-id: cee5ee77dbb82969751b1d71f0566a26c58ca7c4

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridgeless/ReactHost.java

@@ -1215,12 +1215,12 @@ private Task<ReactInstance> new_getOrCreateReloadTask(String reason) {
    * Entrypoint to destroy the ReactInstance. If the ReactInstance is reloading, will wait until
    * reload is finished, before destroying.
    *
+   * @param reason {@link String} describing why ReactHost is being destroyed (e.g. memmory
+   *     pressure)
+   * @param ex {@link Exception} exception that caused the trigger to destroy ReactHost (or null)
+   *     This exception will be used to log properly the cause of destroy operation.
    * @return A task that completes when React Native gets destroyed.
    */
-  public Future<Void> destroy(String reason) {
-    return destroy(reason, null);
-  }
-
   public Future<Void> destroy(String reason, @Nullable Exception ex) {
     CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
     final String method = "destroy()";