Remove previous beta/testnet section from node.sh

scripts/node.sh

@@ -217,16 +217,6 @@ main)
   network_type=mainnet
   dns_zone=t.hmny.io
   ;;
-beta)
-  bootnodes=(
-    /ip4/54.213.43.194/tcp/9868/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9
-    /ip4/100.26.90.187/tcp/9868/p2p/Qmdfjtk6hPoyrH1zVD9PEH4zfWLo38dP2mDvvKXfh3tnEv
-    /ip4/13.113.101.219/tcp/12018/p2p/QmQayinFSgMMw5cSpDUiD9pQ2WeP6WNmGxpZ6ou3mdVFJX
-  )
-  REL=testnet
-  network_type=testnet
-  dns_zone=b.hmny.io
-  ;;
 pangaea)
   bootnodes=(
     /ip4/54.218.73.167/tcp/9876/p2p/QmWBVCPXQmc2ULigm3b9ayCZa15gj25kywiQQwPhHCZeXj