fix: remove unused topology tracing subscriber

src/rust/Cargo.lock

@@ -2500,7 +2500,6 @@ dependencies = [
  "serde_json",
  "tokio",
  "tracing",
- "tracing-subscriber",
 ]
 
 [[package]]

src/rust/lqos_topology/Cargo.toml

@@ -8,7 +8,6 @@ anyhow.workspace = true
 serde_json.workspace = true
 tokio.workspace = true
 tracing.workspace = true
-tracing-subscriber.workspace = true
 lqos_bus = { path = "../lqos_bus" }
 lqos_config = { path = "../lqos_config" }
 lqos_overrides = { path = "../lqos_overrides" }