[pitivi] elements: Remove obsolete logic

[Alexandru Băluț <alexbalut src gnome org>]

commit 072fad8e9e1bdcb55e2e5b2a0b45d0ee5fbab32f
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Sun Nov 6 00:25:06 2016 +0100

    elements: Remove obsolete logic
    
    __clip_curve_enter_id is long gone.
    
    Differential Revision: https://phabricator.freedesktop.org/D1443

 pitivi/timeline/elements.py |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/pitivi/timeline/elements.py b/pitivi/timeline/elements.py
index d7081b2..678bdb0 100644
--- a/pitivi/timeline/elements.py
+++ b/pitivi/timeline/elements.py
@@ -1102,9 +1102,6 @@ class Clip(Gtk.EventBox, Zoomable, Loggable):
 
     def __disconnectFromChild(self, child):
         if child.ui:
-            if hasattr(child.ui, "__clip_curve_enter_id") and child.ui.__clip_curve_enter_id:
-                child.ui.disconnect_by_func(child.ui.__clip_curve_enter_id)
-                child.ui.disconnect_by_func(child.ui.__clip_curve_leave_id)
             child.ui.release()
 
     def __connectToChild(self, child):