Remove explicit hyper dependency

We depend on hyper implicitely through warp. Removing the explicit
dependency avoids problems with dependabot wanting to update it
even though the dependency needs to be kept in sync with the
transitive one.

Author: thomaseizinger

Cargo.lock

@@ -31,11 +31,10 @@ futures-core = { version = "=0.3.0-alpha.19", features = ["alloc", "compat", "as
 hex = "0.4"
 hex-serde = "0.1.0"
 http-api-problem = "0.13"
-hyper = "0.12"
 lazy_static = "1"
 libp2p = { version = "0.13" }
-libp2p-core = { version = "0.13" }
 libp2p-comit = { path = "../libp2p-comit" }
+libp2p-core = { version = "0.13" }
 libsqlite3-sys = { version = ">=0.8.0, <0.13.0", features = ["bundled"] }
 log = { version = "0.4", features = ["serde"] }
 maplit = "1"

cnd/Cargo.toml

@@ -22,8 +22,10 @@ use crate::{
 };
 use futures::Future;
 use futures_core::future::{FutureExt, TryFutureExt};
-use hyper::header;
-use warp::{http, Rejection, Reply};
+use warp::{
+    http::{self, header},
+    Rejection, Reply,
+};
 
 pub use self::swap_state::{LedgerState, SwapCommunication, SwapCommunicationState, SwapState};
 use crate::{db::Saver, http_api::problem};