Pull tokio/tracing off the main dependency graph

ipa-core/Cargo.toml

@@ -66,7 +66,7 @@ multi-threading = ["async-scoped"]
 # Enable tokio task profiling. Requires tokio_unstable flag to be passed to the compiler.
 # RUSTFLAGS="--cfg tokio_unstable" cargo run ... --features="tokio-console ...".
 # Note that if there are other flags enabled on your platform in .cargo/config.toml, you need to include them as well.
-tokio-console = ["console-subscriber"]
+tokio-console = ["console-subscriber", "tokio/tracing"]
 
 # Standalone aggregation protocol. We use IPA infra for communication
 # but it has nothing to do with IPA.
@@ -140,7 +140,7 @@ sha2 = "0.10"
 shuttle-crate = { package = "shuttle", version = "0.6.1", optional = true }
 thiserror = "1.0"
 time = { version = "0.3", optional = true }
-tokio = { version = "1.35", features = ["fs", "rt", "rt-multi-thread", "macros", "tracing"] }
+tokio = { version = "1.35", features = ["fs", "rt", "rt-multi-thread", "macros"] }
 # TODO: axum-server holds onto 0.24 and we can't upgrade until they do. Or we move away from axum-server
 tokio-rustls = { version = "0.24", optional = true }
 tokio-stream = "0.1.14"