[gnome-shell] environment: Stop adding child_set() to layout managers

[Florian Müllner <fmuellner src gnome org>]

commit 3913fa5044b2cd1d5abadc9b4254d06215491458
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Nov 6 00:08:04 2019 +0100

    environment: Stop adding child_set() to layout managers
    
    We no longer use any layout managers that use custom child properties
    instead of the generic Clutter.Actor properties, so this override
    is completely unused.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/808

 js/ui/environment.js | 5 -----
 1 file changed, 5 deletions(-)
---
diff --git a/js/ui/environment.js b/js/ui/environment.js
index 45df938086..4b330e5da5 100644
--- a/js/ui/environment.js
+++ b/js/ui/environment.js
@@ -51,11 +51,6 @@ function _patchLayoutClass(layoutClass, styleProps) {
                 }
             });
         };
-    layoutClass.prototype.child_set = function(actor, props) {
-        let meta = this.get_child_meta(actor.get_parent(), actor);
-        for (let prop in props)
-            meta[prop] = props[prop];
-    };
 }
 
 function _makeEaseCallback(params, cleanup) {