[Divider] Disable drag-to-fullscreen

Will re-enable it in extensions v7

Bug: 343308774
Test: atest DividerPresenterTest Manual
Change-Id: Ie84aad19dab42aa6cde5f26777ba2e389904b26b
diff --git a/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/DividerPresenter.java b/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/DividerPresenter.java
index 29936cc..7133ee9 100644
--- a/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/DividerPresenter.java
+++ b/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/DividerPresenter.java
@@ -841,8 +841,8 @@
     private static boolean isDraggingToFullscreenAllowed(
             @NonNull DividerAttributes dividerAttributes) {
         // TODO(b/293654166) Use DividerAttributes.isDraggingToFullscreenAllowed when extension is
-        // updated.
-        return true;
+        // updated to v7.
+        return false;
     }
 
     /**