transports/tcp: simplify IfWatcher integration

transports/tcp/CHANGELOG.md

@@ -2,7 +2,10 @@
 
 - Update to `libp2p-core` `v0.35.0`.
 
-- Update to `if-watch` `v1.1.1`.
+- Update to `if-watch` `v2.0.0`. Simplify `IfWatcher` integration.
+  Use `if_watch::IfWatcher` for all runtimes. See [PR 2813].
+
+[PR 2813]: https://github.com/libp2p/rust-libp2p/pull/2813
 
 # 0.34.0
 

transports/tcp/Cargo.toml

@@ -14,9 +14,7 @@ categories = ["network-programming", "asynchronous"]
 async-io-crate = { package = "async-io", version = "1.2.0", optional = true }
 futures = "0.3.8"
 futures-timer = "3.0"
-if-watch = { version = "1.1.1", optional = true }
-if-addrs = { version = "0.7.0", optional = true }
-ipnet = "2.0.0"
+if-watch = "2.0.0" 
 libc = "0.2.80"
 libp2p-core = { version = "0.35.0", path = "../../core", default-features = false  }
 log = "0.4.11"
@@ -25,10 +23,10 @@ tokio-crate = { package = "tokio", version = "1.19.0", default-features = false,
 
 [features]
 default = ["async-io"]
-tokio = ["tokio-crate", "if-addrs"]
-async-io = ["async-io-crate", "if-watch"]
+tokio = ["tokio-crate"]
+async-io = ["async-io-crate"]
 
 [dev-dependencies]
 async-std = { version = "1.6.5", features = ["attributes"] }
-tokio-crate = { package = "tokio", version = "1.0.1", default-features = false, features = ["net", "rt"] }
+tokio-crate = { package = "tokio", version = "1.0.1", default-features = false, features = ["net", "rt", "macros"] }
 env_logger = "0.9.0"