Remove unused dependency.

Author: 01mf02

jaq-core/fuzz/Cargo.toml

@@ -9,7 +9,6 @@ cargo-fuzz = true
 
 [dependencies]
 libfuzzer-sys = "0.4"
-arbitrary = { version = "1", features = ["derive"] }
 
 jaq-core = { path = "..", features = ["arbitrary"] }
 jaq-std  = { path = "../../jaq-std" }