Method remove

src/main/java/mudmap2/backend/prquadtree/Quadtree.java:112–114

Removes el from the quadtree @param el @throws Exception throws an exception, if e couldn't be removed

(QuadtreeElement el)

     * @throws Exception throws an exception, if e couldn't be removed
     */
    private void remove(QuadtreeElement el) throws Exception {
        el.remove();
    }

    /**
     * Removes element at x, y, if there is one