message: subscriber: rm unused deps
diff: @@ -36,19 +36,6 @@ lazy_static = { optional = true, version = "1" }
  tracing-fmt = "0.0.1-alpha.2"
  tracing = "0.1"
  -# load generator demo
  -tracing-tower = { version = "0.1.0", path = "../tracing-tower" }
  -tower = "0.1"
  -tower-hyper = "0.1"
  -tower-http-util = "0.1"
  -tracing-futures = "0.0.1-alpha.1"
  -futures = "0.1"
  -hyper = "0.12"
  -tokio = "0.1"
  -tokio-tcp = "0.1"
  -tokio-buf = "0.1"
  -rand = "0.6"
  -
  [badges]
  azure-devops = { project = "tracing/tracing", pipeline = "tokio-rs.tracing", build = "1" }
  maintenance = { status = "experimental" }
  