cppcheck: drop unreachable DEBUG_VALIDATE_BUG_ONs

Remove unreachable DEBUG_VALIDATE_BUG_ON statements.

src/stream-tcp.c

@@ -1970,7 +1970,6 @@ static int StreamTcp3whsStoreSyn(TcpSession *ssn, Packet *p)
         return 0;
 
     if (ssn->queue != NULL && ssn->queue_len == stream_config.max_syn_queued) {
-        DEBUG_VALIDATE_BUG_ON(ssn->queue == NULL);
         SCLogDebug("%" PRIu64 ": ssn %p: =~ SYN queue limit reached, rotate", PcapPacketCntGet(p),
                 ssn);
         StreamTcpSetEvent(p, STREAM_3WHS_SYN_FLOOD);

src/util-file-swf-decompression.c

@@ -187,7 +187,6 @@ int FileSwfLzmaDecompression(DetectEngineThreadCtx *det_ctx, const uint8_t *comp
         DetectEngineSetEvent(det_ctx, FILE_DECODER_EVENT_LZMA_MEMLIMIT_ERROR);
     } else if (ret == LzmaXzError) {
         /* We should not see XZ compressed SWF files */
-        DEBUG_VALIDATE_BUG_ON(ret == LzmaXzError);
         DetectEngineSetEvent(det_ctx, FILE_DECODER_EVENT_LZMA_XZ_ERROR);
     } else {
         DetectEngineSetEvent(det_ctx, FILE_DECODER_EVENT_LZMA_UNKNOWN_ERROR);