Reduce futures-util features (#1427)

* Reduce futures-util features

* Remove unused futures crate from sqlx-macros

Author: paolobarbolini

Cargo.lock

@@ -121,7 +121,7 @@ either = "1.5.3"
 futures-channel = { version = "0.3.5", default-features = false, features = ["sink", "alloc", "std"] }
 futures-core = { version = "0.3.5", default-features = false }
 futures-intrusive = "0.4.0"
-futures-util = { version = "0.3.5", features = ["sink"] }
+futures-util = { version = "0.3.5", default-features = false, features = ["alloc", "sink"] }
 generic-array = { version = "0.14.4", default-features = false, optional = true }
 hex = "0.4.2"
 hmac = { version = "0.10.1", default-features = false, optional = true }

sqlx-core/Cargo.toml

@@ -79,7 +79,6 @@ json = ["sqlx-core/json", "serde_json"]
 
 [dependencies]
 dotenv = { version = "0.15.0", default-features = false }
-futures = { version = "0.3.4", default-features = false, features = ["executor"] }
 hex = { version = "0.4.2", optional = true }
 heck = "0.3.1"
 either = "1.5.3"