Remove unused and duplicate strings

Change-Id: I7e1a3120e66ca8bc3adab65499663fecb5b041a3
diff --git a/src/com/android/browser/BrowserYesNoPreference.java b/src/com/android/browser/BrowserYesNoPreference.java
index 289ddf3..37e8431 100644
--- a/src/com/android/browser/BrowserYesNoPreference.java
+++ b/src/com/android/browser/BrowserYesNoPreference.java
@@ -113,7 +113,7 @@
             }
             if (mPrefs.getBoolean(PreferenceKeys.PREF_PRIVACY_CLEAR_HISTORY, false)) {
                 dialogMessage = dialogMessage.concat("\n\t" +
-                        mContext.getString(R.string.pref_privacy_clear_history));
+                        mContext.getString(R.string.history));
                 itemSelected = true;
             }
             if (mPrefs.getBoolean(PreferenceKeys.PREF_PRIVACY_CLEAR_FORM_DATA, false)) {