/**
* @brief Remove an item in the queue.
* @param priorityQueue "this" pointer.
* @param item Item to be removed.
* @note If several similar items are present, only the first is deleted.
/**
* @brief Remove an item in the queue.
* @param priorityQueue "this" pointer.
* @param item Item to be removed.
* @note If several similar items are present, only the first is deleted.