Revert TmqhFlowMode alignment as it breaks on CLANG

src/tmqh-flow.h

@@ -26,13 +26,9 @@
 
 typedef struct TmqhFlowMode_ {
     PacketQueue *q;
-#if __WORDSIZE == 32
-    uint32_t pad1;
-#endif
     SC_ATOMIC_DECLARE(uint64_t, total_packets);
     SC_ATOMIC_DECLARE(uint64_t, total_flows);
-    uint32_t pad[10];
+} TmqhFlowMode;
-} TmqhFlowMode __attribute__((aligned(64)));
 
 /** \brief Ctx for the flow queue handler
  *  \param size number of queues to output to