Remove smallbox

Cargo.lock

@@ -2493,7 +2493,6 @@ dependencies = [
  "rustc-hash",
  "serde",
  "slab",
- "smallbox",
  "tokio",
  "tracing",
 ]
@@ -9374,12 +9373,6 @@ dependencies = [
  "rustc-hash",
 ]
 
-[[package]]
-name = "smallbox"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d92359f97e6b417da4328a970cf04a044db104fbd57f7d72cb7ff665bb8806af"
-
 [[package]]
 name = "smallvec"
 version = "1.11.2"