Removed lock in reset and replaced it with wakeupPoller call

Trying to lock the controller from one of its axes may lead to
segfaults, hence it is not advisable.

src/sinqAxis.cpp

@@ -543,15 +543,7 @@ asynStatus sinqAxis::reset() {
 
     if (status == asynSuccess) {
         // Perform some fast polls
-        pC_->lock();
-        bool moving = false;
-        for (int i = 0; i < 5; i++) {
-            epicsThreadSleep(pC_->movingPollPeriod());
-            if (poll(&moving) == asynSuccess) {
-                break;
-            }
-        }
-        pC_->unlock();
+        pC_->wakeupPoller();
     }
 
     status = assertConnected();