[orca] Remove the zombie check from commonAncestor as it causes chattiness

[Joanmarie Diggs <joanied src gnome org>]

commit 81cdcf88eec7c108e6a73221cfea28eb5ff8702b
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Nov 20 17:30:24 2015 -0500

    Remove the zombie check from commonAncestor as it causes chattiness

 src/orca/script_utilities.py |   10 ++--------
 1 files changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 66f26ba..814c385 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -260,17 +260,11 @@ class Utilities:
         debug.println(debug.LEVEL_FINEST,
                       "script_utilities.commonAncestor...")
 
+        # Don't do any Zombie checks here, as tempting and logical as it
+        # may seem as it can lead to chattiness.
         if not (a and b):
             return None
 
-        if self.isZombie(a) or self.isZombie(b):
-            try:
-                rolesAreSame = a.getRole() == b.getRole()
-            except:
-                rolesAreSame = False
-            if not rolesAreSame:
-                return None
-
         if a == b:
             return a