[orca] Don't generate availability for list items as it doesn't make sense

[Joanmarie Diggs <joanied src gnome org>]

commit a0db1c5a5b44cf30dac35c0e4e7102bf8343ce2f
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Aug 5 11:59:52 2015 -0400

    Don't generate availability for list items as it doesn't make sense

 src/orca/formatting.py |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/orca/formatting.py b/src/orca/formatting.py
index ea610f1..a93150d 100644
--- a/src/orca/formatting.py
+++ b/src/orca/formatting.py
@@ -224,8 +224,8 @@ formatting = {
             'unfocused': 'labelOrName + pause + focusedItem + pause + multiselectableState + 
numberOfChildren + pause'
             },
         pyatspi.ROLE_LIST_ITEM: {
-            'focused': 'expandableState + availability',
-            'unfocused': 'label + displayedText + allTextSelection + pause + expandableState + pause + 
availability + positionInList + pause + childWidget',
+            'focused': 'expandableState',
+            'unfocused': 'label + displayedText + allTextSelection + pause + expandableState + pause + 
positionInList + pause + childWidget',
             'basicWhereAmI': 'label + roleName + pause + name + pause + positionInList + pause + 
expandableState + (nodeLevel or nestingLevel) + pause'
             },
         pyatspi.ROLE_MATH: {