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/frame/contracts/src/tests.rs

@@ -1644,10 +1644,28 @@ fn self_destruct_works() {
 
 		// The call triggers rent collection that reduces the amount of balance
 		// that remains for the beneficiary.
-		let balance_after_rent = 93_086;
+		let mut events = System::events();
+		let balance_after_rent = 99_000;
+
+		// The actual figure will bounce about with wasm compiler updates as the rent depends on
+		// the compiled wasm size, so we replace it with a fixed value
+		// as rent isn't what we're testing for in this test.
+		let mut actual_balance_after_rent = 99_000;
+		if let Event::Balances(pallet_balances::Event::Transfer(_, _, ref mut actual_bal)) =
+			&mut events[1].event
+		{
+			std::mem::swap(&mut actual_balance_after_rent, actual_bal);
+			assert!(
+				(90_000..99_000).contains(&actual_balance_after_rent),
+				"expected less than 100_000: {}",
+				actual_balance_after_rent
+			);
+		} else {
+			assert!(false);
+		}
 
 		pretty_assertions::assert_eq!(
-			System::events(),
+			events,
 			vec![
 				EventRecord {
 					phase: Phase::Initialization,
@@ -1673,7 +1691,7 @@ fn self_destruct_works() {
 					event: Event::Contracts(crate::Event::Terminated(addr.clone(), DJANGO)),
 					topics: vec![],
 				},
-			]
+			],
 		);
 
 		// Check that account is gone
@@ -1681,7 +1699,7 @@ fn self_destruct_works() {
 
 		// check that the beneficiary (django) got remaining balance
 		// some rent was deducted before termination
-		assert_eq!(Balances::free_balance(DJANGO), 1_000_000 + balance_after_rent);
+		assert_eq!(Balances::free_balance(DJANGO), 1_000_000 + actual_balance_after_rent);
 	});
 }