message: remove default feature by removing all optional = true
diff: @@ -6,10 +6,10 @@ license = "Apache-2.0"
  [dependencies]
  ark-ff = { version = "0.3.0", features = [ "parallel", "asm" ] }
  -num-bigint = { version = "0.4.0", optional = true }
  -serde_json = { version = "1.0", optional = true }
  -hex = { version = "0.4", optional = true }
  -ark-serialize = { version = "0.3.0", optional = true }
  +num-bigint = { version = "0.4.0" }
  +serde_json = { version = "1.0" }
  +hex = { version = "0.4" }
  +ark-serialize = { version = "0.3.0" }
  rand = "0.8.0"
  serde = { version = "1.0", features = ["derive"] }
  serde_with = "1.10.0"
  @@ -17,5 +17,3 @@ serde_with = "1.10.0"
  mina-curves = { path = "../../curves" }
  oracle = { path = "../../oracle" }
  -[features]
  -default = ["num-bigint", "serde_json", "hex", "ark-serialize"]
  