Remove unused direct dependency on pin-utils

They use pin_mut via futures-util.

Author: taiki-e

futures-test/Cargo.toml

@@ -18,7 +18,6 @@ futures-util = { version = "=0.4.0-alpha.0", path = "../futures-util", default-f
 futures-executor = { version = "=0.4.0-alpha.0", path = "../futures-executor", default-features = false }
 futures-sink = { version = "=0.4.0-alpha.0", path = "../futures-sink", default-features = false }
 futures-macro = { version = "=0.4.0-alpha.0", path = "../futures-macro", default-features = false }
-pin-utils = { version = "0.1.0", default-features = false }
 pin-project = "1.0.11"
 
 [dev-dependencies]

futures/Cargo.toml

@@ -28,7 +28,6 @@ futures-executor = { path = "../futures-executor", features = ["thread-pool"] }
 futures-test = { path = "../futures-test" }
 assert_matches = "1.3.0"
 pin-project = "1.0.11"
-pin-utils = "0.1.0"
 static_assertions = "1"
 tokio = "0.1.11"