Removing network=disable from config files (#4715)

parity/cli/config.full.toml

@@ -27,7 +27,6 @@ interface = "127.0.0.1"
 path = "$HOME/.parity/signer"
 
 [network]
-disable = false
 port = 30303
 min_peers = 25
 max_peers = 50

parity/cli/config.toml

@@ -12,7 +12,6 @@ password = ["passwdfile path"]
 disable = true
 
 [network]
-disable = false
 warp = false
 discovery = true
 nat = "any"

parity/cli/mod.rs

@@ -388,7 +388,6 @@ struct Ui {
 
 #[derive(Default, Debug, PartialEq, RustcDecodable)]
 struct Network {
-	disable: Option<bool>,
 	warp: Option<bool>,
 	port: Option<u16>,
 	min_peers: Option<u16>,
@@ -838,7 +837,6 @@ mod tests {
 				path: None,
 			}),
 			network: Some(Network {
-				disable: Some(false),
 				warp: Some(false),
 				port: None,
 				min_peers: Some(10),