Removes unnecessary check when connecting to yahoo.

src/net/java/sip/communicator/impl/protocol/yahoo/ProtocolProviderServiceYahooImpl.java

@@ -134,15 +134,9 @@ private void connectAndLogin(   SecurityAuthority authority,
 
             // If the password hasn't been saved or the reason is one of those
             // listed below we need to ask the user for credentials again.
-            //
-            // NOTE:  We could check 'reason != CONNECTION_FAILED', but that's
-            // less clear and more easily broken if another reason is added
-            // (which is unlikely to require checking credentials again), so
-            // the performance impact of checking three values is preferred.
-            if ((password == null) ||
-                (authReasonCode == SecurityAuthority.AUTHENTICATION_REQUIRED) ||
-                (authReasonCode == SecurityAuthority.WRONG_PASSWORD) ||
-                (authReasonCode == SecurityAuthority.WRONG_USERNAME))
+            if (password == null
+                || authReasonCode == SecurityAuthority.WRONG_PASSWORD
+                || authReasonCode == SecurityAuthority.WRONG_USERNAME)
             {
                 //create a default credentials object
                 UserCredentials credentials = new UserCredentials();