remove obsolete small_rng features

Signed-off-by: Andrei Gherghescu <8067229+andrei-ng@users.noreply.github.com>

Author: andrei-ng

plotly/Cargo.toml

@@ -69,10 +69,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 serde_repr = "0.1"
 serde_with = ">=2, <4"
-rand = { version = "0.10", default-features = false, features = [
-    "small_rng",
-    "alloc",
-] }
+rand = { version = "0.10", default-features = false, features = ["alloc"] }
 async-trait = { version = "0.1", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]