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/core/src/offchain/testing.rs

@@ -300,8 +300,9 @@ impl offchain::Externalities for TestOffchainExt {
 
 		ids.iter()
 			.map(|id| match state.requests.get(id) {
-				Some(req) if req.response.is_none() =>
-					panic!("No `response` provided for request with id: {:?}", id),
+				Some(req) if req.response.is_none() => {
+					panic!("No `response` provided for request with id: {:?}", id)
+				},
 				None => RequestStatus::Invalid,
 				_ => RequestStatus::Finished(200),
 			})