Update netdb.txt
remove 4 entry
199.16.31.96:3355
-109.90.229.170:35585
-45.63.58.16:13655
172.105.216.53:3356
47.93.223.203:13655
-213.168.251.23:13655
195.24.64.107:3356
77.55.222.85:3355
24.234.35.55:31334
139.99.124.121:8900
47.100.81.112:13655
51.15.197.120:13655
-188.95.248.247:13655
47.89.176.228:13655
47.52.203.23:13655
58.218.204.118:13655
