Remove unused imports in SecuritySettings.java

Change-Id: Ibce3dbdd8ee8a6cd1727313f3a2502717ee7f30a
diff --git a/src/com/android/settings/SecuritySettings.java b/src/com/android/settings/SecuritySettings.java
index 1348d48..b29db2d 100644
--- a/src/com/android/settings/SecuritySettings.java
+++ b/src/com/android/settings/SecuritySettings.java
@@ -20,7 +20,6 @@
 import java.util.Observable;
 import java.util.Observer;
 
-import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.admin.DevicePolicyManager;
@@ -32,20 +31,16 @@
 import android.database.Cursor;
 import android.location.LocationManager;
 import android.os.Bundle;
-import android.os.SystemProperties;
 import android.preference.CheckBoxPreference;
-import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceManager;
 import android.preference.PreferenceScreen;
-import android.preference.Preference.OnPreferenceChangeListener;
 import android.provider.Settings;
 import android.security.Credentials;
 import android.security.KeyStore;
 import android.telephony.TelephonyManager;
-import android.util.Log;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;
diff --git a/src/com/android/settings/SoundSettings.java b/src/com/android/settings/SoundSettings.java
index bfb5566..a735268 100644
--- a/src/com/android/settings/SoundSettings.java
+++ b/src/com/android/settings/SoundSettings.java
@@ -16,8 +16,6 @@
 
 package com.android.settings;
 
-import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
-
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;