app-layer-ssl: remove unnecessary length check

We already check that empty extensions are not decoded, so this length
check is not needed.

src/app-layer-ssl.c

@@ -1184,8 +1184,7 @@ static inline int TLSDecodeHSHelloExtensions(SSLState *ssl_state,
 
             case SSL_EXTENSION_SESSION_TICKET:
             {
-                if ((ssl_state->current_flags & SSL_AL_FLAG_STATE_CLIENT_HELLO) &&
+                if (ssl_state->current_flags & SSL_AL_FLAG_STATE_CLIENT_HELLO) {
-                        ext_len != 0) {
                     /* This has to be verified later on by checking if a
                        certificate record has been sent by the server. */
                     ssl_state->flags |= SSL_AL_FLAG_SESSION_RESUMED;