[orca] Chromium: Remove index-in-parent hack

[Joanmarie Diggs <joanied src gnome org>]

commit a053805e3880f4bb8d41e6e22c8d32ed6a78ef6a
Author: Joanmarie Diggs <jd blockhead hsd1 nh comcast net>
Date:   Fri Jan 18 13:56:55 2019 -0500

    Chromium: Remove index-in-parent hack

 .../scripts/toolkits/Chromium/script_utilities.py  | 25 ----------------------
 1 file changed, 25 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/Chromium/script_utilities.py 
b/src/orca/scripts/toolkits/Chromium/script_utilities.py
index 4bc299669..98251e00b 100644
--- a/src/orca/scripts/toolkits/Chromium/script_utilities.py
+++ b/src/orca/scripts/toolkits/Chromium/script_utilities.py
@@ -78,31 +78,6 @@ class Utilities(web.Utilities):
         self._documentsEmbeddedBy[hash(frame)] = result
         return result
 
-    def isZombie(self, obj):
-        if not super().isZombie(obj):
-            return False
-
-        # Things (so far) seem to work as expected for document content -- except the
-        # document frame itself.
-        if not self.isDocument(obj) and self.inDocumentContent(obj):
-            return True
-
-        # HACK for other items, including (though possibly not limited to) menu items
-        # (e.g. when you press Alt+F and arrow) and the location bar popup.
-        try:
-            index = obj.getIndexInParent()
-        except:
-            msg = "CHROMIUM: Exception getting index in parent for %s" % obj
-            debug.println(debug.LEVEL_INFO, msg, True)
-            return True
-
-        if index == -1 and self.isShowingAndVisible(obj):
-            msg = "CHROMIUM: INDEX IN PARENT OF -1 HACK: Ignoring bad index of %s" % obj
-            debug.println(debug.LEVEL_INFO, msg, True)
-            return False
-
-        return True
-
     def selectedChildCount(self, obj):
         count = super().selectedChildCount(obj)
         if count or "Selection" in pyatspi.listInterfaces(obj):