Disable log reloading by default (#9966)

* Disable log reloading by default

This disables the log reloading that was enabled by default. The problem
is that the log reload implementation of `tracing` is using a lock to
make the layer replaceable. This lock needs to be locked every time we
need to check if a particular target is enabled (assuming the log level
is high enough). This kills the performance when for example
`sometarget=trace` logging is enabled.

* 🤦

* Remove unused parameter

* Fix test

* Fix

substrate/bin/node/cli/benches/transaction_pool.rs

@@ -99,7 +99,6 @@ fn new_node(tokio_handle: Handle) -> node_cli::service::NewFullBase {
 		base_path: Some(base_path),
 		informant_output_format: Default::default(),
 		wasm_runtime_overrides: None,
-		disable_log_reloading: false,
 	};
 
 	node_cli::service::new_full_base(config, |_, _| ()).expect("Creates node")