eden/scm: remove leftover of tokio-core after tokio 0.2 migration (#52)

Summary: Pull Request resolved: #52

Reviewed By: krallin

Differential Revision: D23594074

Pulled By: lukaspiatkowski

fbshipit-source-id: 776c02418f4951321887f566bac8b76c9da8bcc1

Author: lukaspiatkowski

eden/scm/lib/edenfs-client/Cargo.toml

@@ -11,7 +11,7 @@ clidispatch = { path = "../clidispatch" }
 libc = "0.2"
 sha2 = "0.8"
 thrift-types = { path = "../thrift-types" }
-tokio-core = "0.1"
+tokio = "0.2"
 tokio-uds = "0.1"
 
 [target.'cfg(unix)'.dependencies]