window: Don't set the window size in widget_set_size()

We propagate the toplevel widget size to the window size in the
window.c resize code.

clients/window.c

@@ -1080,11 +1080,6 @@ widget_set_size(struct widget *widget, int32_t width, int32_t height)
 
 	widget->allocation.width = width;
 	widget->allocation.height = height;
-
-	window->allocation.x = 0;
-	window->allocation.y = 0;
-	window->allocation.width = width;
-	window->allocation.height = height;
 }
 
 void