Reduce visibility of RedBoxDialogSurfaceDelegate

Summary:
In an attempt to reduce footprint of React Native Android public APIs we are reducing visibility of classes and interfaces that are not meant to be used publicly OR are public but have no usages.
As part of our analysis, which involved looking for usages inside the Meta codebase and code search in OSS, we've detected that this class/interface is public but it's not used from other packages.

If you are using this class or interface please comment in this PR and we will restate the public access.

changelog: [Android][Changed] Reducing visibility of RedBoxDialogSurfaceDelegate

bypass-github-export-checks

Reviewed By: arushikesarwani94

Differential Revision: D49803299

fbshipit-source-id: d3d5a6a61c4541503552c27bf940531c2e27f5ce

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/RedBoxDialogSurfaceDelegate.java

@@ -23,7 +23,7 @@
  * The implementation of SurfaceDelegate with {@link Activity}. This is the default SurfaceDelegate
  * for Mobile.
  */
-public class RedBoxDialogSurfaceDelegate implements SurfaceDelegate {
+class RedBoxDialogSurfaceDelegate implements SurfaceDelegate {
 
   private final DoubleTapReloadRecognizer mDoubleTapReloadRecognizer;
   private final DevSupportManager mDevSupportManager;