flow-manager: avoid doubly signaling threads

Don't try to wake up the threads we just flagged and validated that
they changed their state.

src/flow-manager.c

@@ -190,10 +190,6 @@ again:
     }
     SCMutexUnlock(&tv_root_lock);
 
-    /* wake up threads, another try */
-    for (u = 0; u < flowmgr_number; u++)
-        SCCtrlCondSignal(&flow_manager_ctrl_cond);
-
     /* reset count, so we can kill and respawn (unix socket) */
     SC_ATOMIC_SET(flowmgr_cnt, 0);
     return;
@@ -1155,10 +1151,6 @@ again:
     }
     SCMutexUnlock(&tv_root_lock);
 
-    /* wake up threads, another try */
-    for (u = 0; u < flowrec_number; u++)
-        SCCtrlCondSignal(&flow_recycler_ctrl_cond);
-
     /* reset count, so we can kill and respawn (unix socket) */
     SC_ATOMIC_SET(flowrec_cnt, 0);
     return;