[orca] Get rid of orca_state.focusHistory: We no longer use it but we keep storing it.

[Joanmarie Diggs <joanied src gnome org>]

commit 77b23a7b1ffee5719b89d1b9af53ad0d93aba306
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Feb 14 14:57:57 2012 -0500

    Get rid of orca_state.focusHistory: We no longer use it but we keep storing it.

 src/orca/orca.py       |    4 ----
 src/orca/orca_state.py |    4 ----
 src/orca/settings.py   |    5 -----
 3 files changed, 0 insertions(+), 13 deletions(-)
---
diff --git a/src/orca/orca.py b/src/orca/orca.py
index 5f4b874..82ded9c 100644
--- a/src/orca/orca.py
+++ b/src/orca/orca.py
@@ -488,10 +488,6 @@ def setLocusOfFocus(event, obj, notifyScript=True, force=False):
         # Either it's None or it's an invalid remote object.
         oldLocusOfFocus = None
 
-    orca_state.focusHistory = \
-        orca_state.focusHistory[:settings.focusHistoryLength - 1]
-    orca_state.focusHistory.insert(0, oldLocusOfFocus)
-
     orca_state.locusOfFocus = obj
     try:
         app = orca_state.locusOfFocus.getApplication()
diff --git a/src/orca/orca_state.py b/src/orca/orca_state.py
index 5d6b9b5..2e3e1a4 100644
--- a/src/orca/orca_state.py
+++ b/src/orca/orca_state.py
@@ -32,10 +32,6 @@ __license__   = "LGPL"
 # easily cause circular imports.
 #
 
-# History of focused accessibles, helps caching.
-#
-focusHistory = []
-
 # The Accessible that has visual focus.
 #
 locusOfFocus = None
diff --git a/src/orca/settings.py b/src/orca/settings.py
index 22b34c0..7a534d9 100644
--- a/src/orca/settings.py
+++ b/src/orca/settings.py
@@ -755,11 +755,6 @@ def overridePronunciations(script, pronunciations):
 #
 deprecatedMessages = False
 
-# Focus history length. We keep a reference to past focused accessibles to
-# maximize on caching.
-#
-focusHistoryLength = 5
-
 # This is a list of events that Orca should immidiately drop and never look at.
 #
 ignoredEventsList = ['object:bounds-changed']