Revert "NetworkProvider: Do not propagate callbacks for unregistered offers"

This reverts commit 546c722511d42c39c13f0b2a7e1c4f8c0b10b004.

Test: TH
Change-Id: I2c8a8e7faf407a0dae17074d2d435669e16b5e79
diff --git a/framework/src/android/net/NetworkProvider.java b/framework/src/android/net/NetworkProvider.java
index 3615075..4dd642e 100644
--- a/framework/src/android/net/NetworkProvider.java
+++ b/framework/src/android/net/NetworkProvider.java
@@ -192,36 +192,21 @@
     private class NetworkOfferCallbackProxy extends INetworkOfferCallback.Stub {
         @NonNull public final NetworkOfferCallback callback;
         @NonNull private final Executor mExecutor;
-        /**
-         * Boolean flag that prevents onNetworkNeeded / onNetworkUnneeded callbacks from being
-         * propagated after unregisterNetworkOffer has been called. Since unregisterNetworkOffer
-         * runs on the CS handler thread, it will not go into effect immediately.
-         */
-        private volatile boolean mIsStale;
 
         NetworkOfferCallbackProxy(@NonNull final NetworkOfferCallback callback,
                 @NonNull final Executor executor) {
             this.callback = callback;
             this.mExecutor = executor;
-            this.mIsStale = false;
         }
 
         @Override
         public void onNetworkNeeded(final @NonNull NetworkRequest request) {
-            mExecutor.execute(() -> {
-                if (!mIsStale) callback.onNetworkNeeded(request);
-            });
+            mExecutor.execute(() -> callback.onNetworkNeeded(request));
         }
 
         @Override
         public void onNetworkUnneeded(final @NonNull NetworkRequest request) {
-            mExecutor.execute(() -> {
-                if (!mIsStale) callback.onNetworkUnneeded(request);
-            });
-        }
-
-        public void markStale() {
-            mIsStale = true;
+            mExecutor.execute(() -> callback.onNetworkUnneeded(request));
         }
     }
 
@@ -342,7 +327,6 @@
         final NetworkOfferCallbackProxy proxy = findProxyForCallback(callback);
         if (null == proxy) return;
         synchronized (mProxies) {
-            proxy.markStale();
             mProxies.remove(proxy);
         }
         mContext.getSystemService(ConnectivityManager.class).unofferNetwork(proxy);