watch: don't set TLSConfig.Address explicitly (#4727)

Don't set the value of TLSConfig.Address explicitly.

This will make sure env vars like CONSUL_TLS_SERVER_NAME are taken into account for the connection. Fixes #4718.

agent/config/runtime.go

@@ -1475,7 +1475,6 @@ func (c *RuntimeConfig) APIConfig(includeClientCerts bool) (*api.Config, error)
 		cfg.Scheme = "https"
 		cfg.TLSConfig.CAFile = c.CAFile
 		cfg.TLSConfig.CAPath = c.CAPath
-		cfg.TLSConfig.Address = httpsAddr
 		if includeClientCerts {
 			cfg.TLSConfig.CertFile = c.CertFile
 			cfg.TLSConfig.KeyFile = c.KeyFile