fix(rustproxy-http): remove connection pool hit logging and keep logging limited to actual failures

rust/crates/rustproxy-http/src/connection_pool.rs

@@ -10,7 +10,7 @@ use bytes::Bytes;
 use dashmap::DashMap;
 use http_body_util::combinators::BoxBody;
 use hyper::client::conn::{http1, http2};
-use tracing::{debug, warn};
+// No per-request logging in the pool — only log on actual failures (in proxy_service.rs)
 
 /// Maximum idle connections per backend key.
 const MAX_IDLE_PER_KEY: usize = 16;
@@ -120,21 +120,13 @@ impl ConnectionPool {
         let pooled = entry.value();
         let age = pooled.created_at.elapsed();
 
-        // Check if the h2 connection is still alive and not too old
         if pooled.sender.is_closed() || age >= MAX_H2_AGE {
-            let reason = if pooled.sender.is_closed() { "closed" } else { "max_age" };
-            debug!("Pool evict (h2): {}:{} (reason={}, age={:.1}s)", key.host, key.port, reason, age.as_secs_f64());
             drop(entry);
             self.h2_pool.remove(key);
             return None;
         }
 
         if pooled.sender.is_ready() {
-            if age > Duration::from_secs(30) {
-                warn!("Pool hit (h2): {}:{} — connection age {:.1}s (>30s, may be stale)", key.host, key.port, age.as_secs_f64());
-            } else {
-                debug!("Pool hit (h2): {}:{} (age={:.1}s)", key.host, key.port, age.as_secs_f64());
-            }
             return Some((pooled.sender.clone(), age));
         }
         None