chore: Disable unused tower feature (#2196)

Author: tottoto

tonic/Cargo.toml

@@ -105,7 +105,7 @@ quickcheck_macros = "1.0"
 rand = "0.8"
 static_assertions = "1.0"
 tokio = {version = "1.0", features = ["rt", "macros"]}
-tower = {version = "0.5", features = ["full"]}
+tower = {version = "0.5", features = ["load-shed", "timeout"]}
 
 [lints]
 workspace = true