[pitivi] editorperspective: Remove obsolete handler

[Alexandru Băluț <alexbalut src gnome org>]

commit cfb4af3c1554e276fe50e27266aed3578302bff1
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Wed Sep 11 03:15:27 2019 +0200

    editorperspective: Remove obsolete handler
    
    It was not actually triggered anymore.

 pitivi/editorperspective.py | 8 --------
 1 file changed, 8 deletions(-)
---
diff --git a/pitivi/editorperspective.py b/pitivi/editorperspective.py
index 793f4538..be353e5f 100644
--- a/pitivi/editorperspective.py
+++ b/pitivi/editorperspective.py
@@ -815,7 +815,6 @@ class PreviewAssetWindow(Gtk.Window):
         self._previewer.show()
 
         self.connect("focus-out-event", self._leavePreviewCb)
-        self.connect("key-press-event", self._keyPressCb)
 
     def preview(self):
         """Shows the window and starts the playback."""
@@ -860,10 +859,3 @@ class PreviewAssetWindow(Gtk.Window):
     def _leavePreviewCb(self, window, unused):
         self.destroy()
         return True
-
-    def _keyPressCb(self, unused_widget, event):
-        if event.keyval in (Gdk.KEY_Escape, Gdk.KEY_Q, Gdk.KEY_q):
-            self.destroy()
-        elif event.keyval == Gdk.KEY_space:
-            self._previewer.togglePlayback()
-        return True