Remove old RSK testnet node config

nodes/rsk-testnet-1.json

@@ -1,57 +0,0 @@
-{
-  "name": "rsk-testnet-1",
-  "normal": {
-    "knife_zero": {
-      "host": "10.1.1.136"
-    }
-  },
-  "automatic": {
-    "fqdn": "rsk-testnet-1",
-    "os": "linux",
-    "os_version": "5.4.0-1026-kvm",
-    "hostname": "rsk-testnet-1",
-    "ipaddress": "192.168.122.196",
-    "roles": [
-      "rskj_testnet"
-    ],
-    "recipes": [
-      "kosmos-base",
-      "kosmos-base::default",
-      "kosmos_rsk::rskj",
-      "apt::default",
-      "timezone_iii::default",
-      "timezone_iii::debian",
-      "ntp::default",
-      "ntp::apparmor",
-      "kosmos-base::systemd_emails",
-      "apt::unattended-upgrades",
-      "kosmos-base::firewall",
-      "kosmos-postfix::default",
-      "postfix::default",
-      "postfix::_common",
-      "postfix::_attributes",
-      "postfix::sasl_auth",
-      "hostname::default",
-      "firewall::default",
-      "chef-sugar::default"
-    ],
-    "platform": "ubuntu",
-    "platform_version": "20.04",
-    "cloud": null,
-    "chef_packages": {
-      "ohai": {
-        "version": "16.13.0",
-        "ohai_root": "/opt/chef/embedded/lib/ruby/gems/2.7.0/gems/ohai-16.13.0/lib/ohai"
-      },
-      "chef": {
-        "version": "16.13.16",
-        "chef_root": "/opt/chef/embedded/lib/ruby/gems/2.7.0/gems/chef-16.13.16/lib",
-        "chef_effortless": null
-      }
-    }
-  },
-  "run_list": [
-    "recipe[kosmos-base]",
-    "role[rskj_testnet]"
-  ]
-}