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 tokio-rs/tracing#1429 )

Cargo.toml

@@ -16,7 +16,6 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "4.0.0-dev", default-features = false, path = "../support" }
 frame-system = { version = "4.0.0-dev", default-features = false, path = "../system" }
-sp-core = { version = "4.0.0-dev", default-features = false, path = "../../primitives/core" }
 sp-runtime = { version = "4.0.0-dev", default-features = false, path = "../../primitives/runtime" }
 sp-std = { version = "4.0.0-dev", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "4.0.0-dev", default-features = false, path = "../../primitives/io" }