API council requested tweaks to SystemClock.

Test: none
Bug: 73952114
Change-Id: Idd7aae5161a2326920860a6a9c7137369a4d8b3d
diff --git a/api/current.txt b/api/current.txt
index 5e7fa591..693f0f6 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -33093,8 +33093,6 @@
   }
 
   public final class SystemClock {
-    method public static java.time.Clock currentNetworkTimeClock();
-    method public static long currentNetworkTimeMillis();
     method public static long currentThreadTimeMillis();
     method public static long elapsedRealtime();
     method public static long elapsedRealtimeNanos();
diff --git a/core/java/android/os/SystemClock.java b/core/java/android/os/SystemClock.java
index 0f70427..b2541663 100644
--- a/core/java/android/os/SystemClock.java
+++ b/core/java/android/os/SystemClock.java
@@ -269,6 +269,7 @@
      * time or throw.
      *
      * @throws DateTimeException when no accurate network time can be provided.
+     * @hide
      */
     public static long currentNetworkTimeMillis() {
         final IAlarmManager mgr = IAlarmManager.Stub
@@ -302,6 +303,7 @@
      * time or throw.
      *
      * @throws DateTimeException when no accurate network time can be provided.
+     * @hide
      */
     public static @NonNull Clock currentNetworkTimeClock() {
         return new SimpleClock(ZoneOffset.UTC) {