[orca] Remove extra and undefined voice argument in presentObject()

[Joanmarie Diggs <joanied src gnome org>]

commit b0b5d0c8bdd41eba0960f7a026286611510ff9b2
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Sep 8 14:14:41 2015 -0400

    Remove extra and undefined voice argument in presentObject()

 src/orca/scripts/default.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index 7d3062b..46920ef 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -3495,7 +3495,7 @@ class Script(script.Script):
     def presentObject(self, obj, offset=0):
         self.updateBraille(obj)
         utterances = self.speechGenerator.generateSpeech(obj)
-        speech.speak(utterances, voice)
+        speech.speak(utterances)
 
     def stopSpeechOnActiveDescendantChanged(self, event):
         """Whether or not speech should be stopped prior to setting the