var json = [ <==ต้องการลบปีกกาตรงนี้
{"id":"node1","name":"node1","data":{"bla":"node1"},"children":[{"id":"node1a","name":"node1a","data":
{"bla":"node1a"},"children":[{"id":"node1a1","name":"node1a1","data":{"bla":"node1a1"},"children":[]},
{"id":"node1a2","name":"node1a2","data":{"bla":"node1a2"},"children":[]},{"id":"node1a3","name":"node1a3","data":
{"bla":"node1a3"},"children":[]}]},{"id":"node1b","name":"node1b","data":{"bla":"node1b"},"children":[]},
{"id":"node1c","name":"node1c","data":{"bla":"node1c"},"children":[]}]}
]; <==ต้องการลบปีกกาตรงนี้