relates to #1228 - removed unusable methods.

Author: dghgit

pg/src/main/java/org/bouncycastle/openpgp/operator/bc/BcSessionKeyDataDecryptorFactory.java

@@ -19,18 +19,6 @@ public BcSessionKeyDataDecryptorFactory(PGPSessionKey sessionKey)
         this.sessionKey = sessionKey;
     }
 
-    public byte[] recoverSessionData(int keyAlgorithm, byte[] key, byte[] seckKeyData)
-        throws PGPException
-    {
-        throw new IllegalStateException("trying to recover session data from session key!");
-    }
-
-    public byte[] recoverSessionData(int keyAlgorithm, byte[][] secKeyData)
-        throws PGPException
-    {
-        throw new IllegalStateException("trying to recover session data from session key!");
-    }
-
     public PGPSessionKey getSessionKey()
     {
         return sessionKey;

pg/src/main/java/org/bouncycastle/openpgp/operator/jcajce/JceSessionKeyDataDecryptorFactoryBuilder.java

@@ -64,18 +64,6 @@ public JceSessionKeyDataDecryptorFactory(OperatorHelper helper, PGPSessionKey se
             this.sessionKey = sessionKey;
         }
 
-        public byte[] recoverSessionData(int keyAlgorithm, byte[] key, byte[] seckKeyData)
-            throws PGPException
-        {
-            throw new IllegalStateException("trying to recover session data from session key!");
-        }
-
-        public byte[] recoverSessionData(int keyAlgorithm, byte[][] secKeyData)
-            throws PGPException
-        {
-            throw new IllegalStateException("trying to recover session data from session key!");
-        }
-
         public PGPSessionKey getSessionKey()
         {
             return sessionKey;