Remove some unused dependencies

Author: sfackler

tokio-postgres/Cargo.toml

@@ -21,7 +21,7 @@ circle-ci = { repository = "sfackler/rust-postgres" }
 
 [features]
 default = ["runtime"]
-runtime = ["tokio/rt-full", "tokio/tcp", "tokio/uds", "tokio-executor", "lazy_static"]
+runtime = ["tokio/rt-full", "tokio/tcp", "tokio/uds"]
 
 "with-bit-vec-0_6" = ["postgres-types/with-bit-vec-0_6"]
 "with-chrono-0_4" = ["postgres-types/with-chrono-0_4"]
@@ -43,9 +43,6 @@ postgres-protocol = { version = "0.4.1", path = "../postgres-protocol" }
 postgres-types = { version = "0.1.0", path = "../postgres-types" }
 tokio = { version = "=0.2.0-alpha.6", default-features = false, features = ["io", "codec"] }
 
-tokio-executor = { version = "=0.2.0-alpha.6", optional = true }
-lazy_static = { version = "1.0", optional = true }
-
 [dev-dependencies]
 tokio = "=0.2.0-alpha.6"
 env_logger = "0.5"