Build: Add missing @Override annotations (dep-ann lint)

router/java/src/net/i2p/data/i2np/DeliveryInstructions.java

@@ -232,7 +232,6 @@ public class DeliveryInstructions extends DataStructureImpl {
     
     /**
      * For cloves only (not tunnels), default false, unused
-     * @deprecated unused
      */
 /****
     private static boolean flagEncrypted(long flags) {

router/java/src/net/i2p/router/crypto/ElGamalAESEngine.java

@@ -73,6 +73,7 @@ public final class ElGamalAESEngine {
      *
      * @deprecated specify the key manager!
      */
+    @Deprecated
     public byte[] decrypt(byte data[], PrivateKey targetPrivateKey) throws DataFormatException {
         return decrypt(data, targetPrivateKey, _context.sessionKeyManager());
     }
@@ -567,6 +568,7 @@ public final class ElGamalAESEngine {
      * @throws IllegalArgumentException on bad target EncType
      * @deprecated unused
      */
+    @Deprecated
     public byte[] encrypt(byte data[], PublicKey target, SessionKey key, Set<SessionTag> tagsForDelivery, long paddedSize) {
         return encrypt(data, target, key, tagsForDelivery, null, null, paddedSize);
     }
@@ -579,6 +581,7 @@ public final class ElGamalAESEngine {
      * @throws IllegalArgumentException on bad target EncType
      * @deprecated unused
      */
+    @Deprecated
     public byte[] encrypt(byte data[], PublicKey target, SessionKey key, long paddedSize) {
         return encrypt(data, target, key, null, null, null, paddedSize);
     }