depend-o-pocalipse (#9450)

Remove unneeded dependencies and dev-dependencies.
Made self_destruct test not dependent on wasm bin size.  
Updated code related to deprecated warning on tracing-subscriber `scope()` 
( See https://github.com/tokio-rs/tracing/issues/1429 )

substrate/primitives/arithmetic/fuzzer/Cargo.toml

@@ -18,7 +18,6 @@ sp-arithmetic = { version = "4.0.0-dev", path = ".." }
 honggfuzz = "0.5.49"
 primitive-types = "0.10.0"
 num-bigint = "0.2"
-num-traits = "0.2"
 
 [[bin]]
 name = "biguint"