Delete PointerQueue::dequeuePtrFromISR, unused since commit db766f1 (#99). (#10090)

src/mesh/PointerQueue.h

@@ -17,14 +17,4 @@ template <class T> class PointerQueue : public TypedQueue<T *>
 
         return this->dequeue(&p, maxWait) ? p : nullptr;
     }
-
-#ifdef HAS_FREE_RTOS
-    // returns a ptr or null if the queue was empty
-    T *dequeuePtrFromISR(BaseType_t *higherPriWoken)
-    {
-        T *p;
-
-        return this->dequeueFromISR(&p, higherPriWoken) ? p : nullptr;
-    }
-#endif
 };