chore(dependencies): remove unused socket2 dependency (#3190)

Author: tottoto

Cargo.toml

@@ -39,7 +39,6 @@ want = "0.3"
 # Optional
 
 libc = { version = "0.2", optional = true }
-socket2 = { version = "0.4", optional = true }
 
 [dev-dependencies]
 futures-util = { version = "0.3", default-features = false, features = ["alloc"] }