Revert "Changes in framework for WIFI_CREDENTIAL_CHANGE broadcast. [DO NOT MERGE]"

This reverts commit 41158d90a69cae2a9c4ced0e04f235e8cfef5259.

Bug: 16871063
Change-Id: I93623be92f2de41789b16827867f3f95bf0480c5
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 31f256c..ff483ce 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -236,7 +236,6 @@
     <protected-broadcast android:name="com.android.server.WifiManager.action.DELAYED_DRIVER_STOP" />
     <protected-broadcast android:name="android.net.wifi.WIFI_STATE_CHANGED" />
     <protected-broadcast android:name="android.net.wifi.WIFI_AP_STATE_CHANGED" />
-    <protected-broadcast android:name="android.net.wifi.WIFI_CREDENTIAL_CHANGED" />
     <protected-broadcast android:name="android.net.wifi.WIFI_SCAN_AVAILABLE" />
     <protected-broadcast android:name="android.net.wifi.SCAN_RESULTS" />
     <protected-broadcast android:name="android.net.wifi.RSSI_CHANGED" />
@@ -817,13 +816,6 @@
         android:permissionGroup="android.permission-group.NETWORK"
         android:protectionLevel="signature|system" />
 
-    <!-- @SystemApi @hide Allow system apps to receive broadcast
-         when a wifi network credential is changed.
-         <p>Not for use by third-party applications. -->
-    <permission android:name="android.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE"
-        android:permissionGroup="android.permission-group.NETWORK"
-        android:protectionLevel="signature|system" />
-
     <!-- @hide -->
     <permission android:name="android.permission.ACCESS_WIMAX_STATE"
         android:permissionGroup="android.permission-group.NETWORK"
diff --git a/wifi/java/android/net/wifi/WifiManager.java b/wifi/java/android/net/wifi/WifiManager.java
index 1ca54bc..e27bd7e 100644
--- a/wifi/java/android/net/wifi/WifiManager.java
+++ b/wifi/java/android/net/wifi/WifiManager.java
@@ -86,28 +86,6 @@
     public static final String EXTRA_SCAN_AVAILABLE = "scan_enabled";
 
     /**
-     * Broadcast intent action indicating that the credential of a Wi-Fi network
-     * has been changed. One extra provides the ssid of the network. Another
-     * extra provides the event type, whether the credential is saved or forgot.
-     * @hide
-     */
-    @SystemApi
-    public static final String WIFI_CREDENTIAL_CHANGED_ACTION =
-            "android.net.wifi.WIFI_CREDENTIAL_CHANGED";
-    /** @hide */
-    @SystemApi
-    public static final String EXTRA_WIFI_CREDENTIAL_EVENT_TYPE = "et";
-    /** @hide */
-    @SystemApi
-    public static final String EXTRA_WIFI_CREDENTIAL_SSID = "ssid";
-    /** @hide */
-    @SystemApi
-    public static final int WIFI_CREDENTIAL_SAVED = 0;
-    /** @hide */
-    @SystemApi
-    public static final int WIFI_CREDENTIAL_FORGOT = 1;
-
-    /**
      * Broadcast intent action indicating that Wi-Fi has been enabled, disabled,
      * enabling, disabling, or unknown. One extra provides this state as an int.
      * Another extra provides the previous state, if available.