[libhandy] deck: Remove navigatable mention

[Alexander Mikhaylenko <alexm src gnome org>]

commit 9c9cab34f4eb478f3b89ca694519a0a584464dcf
Author: Maximiliano <msandova gnome org>
Date:   Mon Jun 6 15:45:58 2022 +0000

    deck: Remove navigatable mention
    
    It was a copy-paste error from leaflet.

 src/hdy-deck.c | 6 ------
 1 file changed, 6 deletions(-)
---
diff --git a/src/hdy-deck.c b/src/hdy-deck.c
index c896f5c8..7318314a 100644
--- a/src/hdy-deck.c
+++ b/src/hdy-deck.c
@@ -33,12 +33,6 @@
  * by using [class@Window] or [class@ApplicationWindow] as they will crop
  * anything drawn beyond the rounded corners.
  *
- * The child property `navigatable` can be set on `HdyDeck` children to
- * determine whether they can be navigated to when folded. If `FALSE`, the child
- * will be ignored by [method@Deck.get_adjacent_child], [method@Deck.navigate],
- * and swipe gestures. This can be used used to prevent switching to widgets
- * like separators.
- *
  * ## CSS nodes
  *
  * `HdyDeck` has a single CSS node with name `deck`.